This is a project all of your neighbors are sure to love! Go outside and hammer the spoons to flatten them (just the round end). It makes a loud pinging sound, which is pleasant. Better yet, do this at 2am.
Let the spoons out and spray with outdoor spray paint. Spray light coats until both sides are covered. Let dry.
Trace your garden markers onto some scrapbook paper.
Cut out the paper to fit. I cut a little bit inside the pencil line so that some of the painted spoon could show around the edge.
Decoupage the paper to the spoons with Outdoor Mod Podge and let dry.
Add any embellishments you like - adhesive letters in my case - and then paint a layer of Mod Podge Outdoor over the top. Give it several coats so it's really durable! Let dry for 24 hours before putting outside.