Watch this one before you start so you can see Michelle's adhesion technique and layout process in action.

What You'll Need:

IOD Products

🎨 IOD Cornucopias Mould

🎨 IOD Air Dry Clay

Additional Supplies

✨ Low, wide oval cardboard craft box

✨ Cornstarch or flour 

✨ Strong adhesive 

✨ Credit card or putty knife

✨ Acrylic paint in a warm off-white or stone gray

✨ Clear wax + dark wax

✨ Soft wax brush or cloth

Step 01 | Prep, Cast, and Plan Your Layout

As a good rule of thumb with IOD Moulds, dust your mould with cornstarch to help the clay release more easily and keep all those gorgeous details. Condition your clay by warming it up in your hands, and then cast all the elements you think you'll need before committing to placement. Cast a few extras while you're at it; having spares takes the pressure off any single piece being perfect.

Once you have your castings, arrange them around the exterior of the box to play with layout and scale before anything is glued down. Have fun. Turn it this way and that. Look at it from different perspectives and POVs and settle on what you like best.

For a clean, flat back on each casting (which is essential for good adhesion on a curved surface), you can flatten it with a credit card, putty knife, or your fingers while it's still in the mould. The micro rim around the mould edge is your guide: once your clay is level with that rim all the way around, you're done. Release gently by turning the mould over and lightly squeezing the sides of the mould. Roll it back to slowly and fully release your casting.

Step 02 | Adhere the Castings to the Curved Surface

Adhering clay to a curved surface requires a little more intention than a flat one, but Michelle's technique is super reliable.

Apply a generous amount of strong adhesive to the back of each casting, spreading it all the way to the edge. Every edge, not just the center. Any area that isn't fully glued is an area that can lift or crack as the clay dries.

Once the casting is placed, resist the instinct to press straight down. Instead, gently squeeze the clay inward, toward the center of the piece, before pressing the edges firmly against the box surface. This inward squeeze closes any small gaps that would otherwise show up as cracks later. Then go around every edge with firm, even pressure until the casting feels fully seated. Work through all your castings one at a time, following the layout you planned in Step 01.

Step 03 | Paint While the Clay Is Still Wet

Here's a technique tip that feels counterintuitive but makes a real difference: paint your castings while the clay is still wet, not after it's dried.

Applying paint to wet clay helps stabilize it as it cures. The paint acts as a flexible skin that moves with the clay as moisture leaves it, reducing the tension that causes surface cracking. Apply an even base coat in a warm off-white or stone gray over all the castings and the box surface. This base tone is what shows through the wax in the final finish, so choose something you love. Let everything dry overnight before moving on.

Step 04 | Repair Any Cracks

Even with the best prep, small cracks can appear as air-dry clay dries on a curved surface, and that's completely normal. Don't let it derail you.

Once everything is fully dry, inspect the castings for any hairline cracks or small separations at the edges. Push a small amount of fresh clay into any gaps, use a tool or your finger to clear the excess so the repair is flush, then follow with another coat of paint over the repaired areas. Let dry fully before moving on to wax.

Step 05 | Wax for a Chalky Stone Finish

This is the finishing step that gives the vessel that beautiful chalky, stone-like quality, and the key here is restraint. You're not going for a deep, dark antique; you're going for the look of aged concrete or weathered limestone.

Start with a coat of clear wax over the entire painted surface to seal the paint and create the base the dark wax will grip. Then apply dark wax sparingly over the top, working it gently into the grooves and relief detail of the Cornucopia castings. The dark wax settles into the low points and brings out the texture and dimension of the mould detail without overwhelming the light base tone.

Work in sections and wipe back the excess with a clean cloth or baby wipe as you go. And in this case, wipe back generously. The finished effect should feel light, chalky, and sun-bleached rather than heavily antiqued. Stand back and check the whole piece as you work; you're building depth, not darkness.

PRO TIP: One clever construction detail worth noting: Michelle hot-glues the lid of a smaller craft box to the bottom of this larger one to create a subtle raised base. It adds a little height and visual interest to the finished vessel. Simple, but it makes a real difference.

The Finished Vessel

You guys. What a beautiful centerpiece this turned into! The chalky stone finish, the dimensional cornucopias and pomegranates, the harvest styling inside. We are obsessed and cannot believe this started as a cardboard box.

IOD Products in This Tutorial

🎨 IOD Cornucopias Mould

🎨 IOD Air Dry Clay

Find IOD products through your local Stockist. Just hit the big red Where to Buy button at ironorchiddesigns.com to find yours. 🙌

Made your own Cornucopia centerpiece? Share it with the IOD Creative Tribe on Facebook. We love seeing what this community creates. 💕