You can encapsulate anything flat-ish in Cast Resin -and a tray is the perfect functional item for it.


Pour on resin is a nifty material, and these beautiful DIY coastal resin trays give you an idea what you can do with it.
The striking palm leaf resin tray above is made with Artificial Palm Leaves and Easy Cast. Envirotex (from the same company) is another pour-on casting material that can be used to create a resin tray.
Then, of course, you can encapsulate shells, similar to these Jar Lid Shell Coasters. The flatter the shells the better.
What else would make an awesome coastal resin tray? Beach Photos, Vintage Beach Postcards, Navigational Maps, Coastal Fabric, just to name a few more ideas.