Just looked under the sink to see if we still had an old can of skate paint, but we don't. It's been 4 years since synchro now, so most of the stuff has been thrown out.
To spray paint skates, you need to get a paint made for leather. Remove the laces, make sure the skate is clean and dry. Stuff the insides with newspaper, and tape around the soles and heel with painter's tape or masking tape. Cover the blade with plastic wrap. Pull the tongue out as far and straight as you can!
My husband used to anchor the skate in his vise. Then spray away! Use constant, even strokes, go light on the spray, let it dry, and do it again. Have q-tips, paintbrushes and paper towels handy to wipe up drips/spread the paint where needed.
If you have any old skates, practice on them first
To tape skates - we had to do black soles, white boots. It's way more complicated to explain, but you basically do the bottoms first, then the sides of the soles. Go up into the boot a tiny bit, about a third of an inch. Switch over to the boot, doing as much taping horizontally as you can. Avoid vertical taping, for some reason it comes undone.