Remove the bottom. Use the top glued to a base for small scale yurts and huts. You can cut doors and windows. Add snipped string or flock on top for thatching. The bottoms could be glued upside down as standing stones.
Or use the tops for SciFi bunkers.
Glue top to bottom to make, an alien archway, bug palm style tree trunks, tower.
Use as leg supports for sea town or landing pad.
Glue spare heads around cap and spare arms hanging out under cap, for horror trees or aliens.
Paint one bright red and glue to centre of gaming table. Then laugh when people press it.
Use caps as little boats.
Use caps as cooking pots, heads and arms come in handy again.
Paint as tiny nuclear explosions, or regular ones.
Paint on numbers and use as funny dice.
Paint as trees.
Use caps as hats/helmets.
Paint all your figures blue.
Sell them to the kids at your club, using such lines as,
"Whooa, these are the greatest dude."
"Like, I can't believe I'm selling these so cheap, man."
Or
"Careful, watch out for the dragon."
And
"Down with the establishment."
Slice and saute.