The handle end of those manual lemon juicer thingies make a nice, smallish butt plug if you don't want to sit down. hehe They're usually available in wood (you can cover it with a condom, small balloon, etc for hygiene) but I've seen plastic and stainless steel ones as well. And as an added bonus you could heat or chill the metal ones.

Candles can be used as insertables, but the colored ones particularly have some staining/clean-up issues cus body heat makes them a little melty. (At least the paraffin ones, haven't tried bee's wax which I believe has a higher melting point.)

A variety of screwdriver handles and such also can be inserted, depending on design.

Small hair clips and even bobby pins are good for make-shift clamps depending on how tight you want them. Some of the really small hair clips have sharp teeth too if you're into that.

I also had an unnaturally close relationship with the motor(?) of the aquarium pump when I was growing up.

Have I mentioned a lifelong affinity for pervertables? lol



(ROFL!! The spellchecker didn't recognize "pervertables"...and suggested "vegetables" as a viable substitute!)