Heres how I used temporary tattoos as decals.
Step 1: Start Up
1. Wet wash cloth
2. And of course tattoos
Step 2: Application
Pretty much you just follow the directions on the backs.
You apply the tattoo on a clean dry surface. Soak it with your wash cloth. Hold pressure on it for 60 seconds.
And there you go! Now you have decals.
I included just a few of the things I put mine on.
Step 3: Tackle Box
Step 4: CD Player
Step 5: Notebook
Step 6: Wall Desk
Step 7: Phone Charger Stand
Hope this gave you some ideas.