Butterfly Postage Stamps

I picked up some butterfly postage stamps from etsy. Why? I wanted to decorate some shoes in them, using mod podge, but the idea didn't really pan out. I placed the stamps on my shoes prior to sticking; they didn't look so good.

So what am I to do with these lovely stamps then? I purchased this wooden tray from an op shop last year..

And decorated it with my butterfly stamps, using beloved mod podge of course.