I saw these little resin gnomes on clearance for $0.99 at Michael's a few weeks ago and bought them up.
I don't know anything about resin but since I have tons of acrylics, I painted them with those. Then I sprayed a clear polyurethane layer on them to make them shiny. Again, I used what I had on hand and have no idea how they'll hold up but it worked for me. Since their faces were already painted on, it didn't take long to finish them. Aren't they cute?
I printed up a little poem with a picture of the gnome and placed it in each of our neighbor's mailboxes.
Then, my son and I snuck around that night and hid a gnome in each yard. The neighbor kids all had fun finding their gnomes over the next few days. A few of them knew it was us but a few of them didn't figure it out. I'd love to wake up and find a little hiding gnome in my yard, wouldn't you?