I love that you can achieve these gorgeous sun prints without the use of special paper. These are made on fabric with paint (use fabric paint if you intend on washing the fabric) and some pretty designs with natural objects. A little time in the sun and then you've got a gorgeous piece of fabric to play with! All the details are at Alisa Burke.
Covering matchboxes is a fairly simple process, but The Tiny Funnel gives you lots of tips that will make it even easier plus shares ideas on how to use them. I think they're the perfect spot to hide small treasures!