Wow, it seems these have a lot more stuff.
13 (I've maybe found 12 or 13 - arrow, alien, O2, bird with a hat, bunny, eyeball, dynamite, pipe, k2, blueberry pie, shoe, walking fish, #7)
8 (8 out of 8 - dynamite, pie, alien, eyeball, pipe, O2, k2, crown symbol)
8 (8 out of 8 - fishtail, eyeball, dynamite, shoe, pie, alien, k2, o2)