Okay, as there's a whole range of audiences here, I shall explain as nicely as possible
Bondage tape, found in your local adult shop, is a somewhat heavy clingfilm and it seems to come in, black, red, clear and pink. Maybe there's some other colours out there but I don't know. One probably well known source of bondage tape in the UK is the Ann Summer's chain (and you can probably buy it on their website, not checked yet).
This is yet another craft inspired by Martha Stewart. You can buy her Flock of Bats Silhouettes window & mirror clings here: http://www.marthastewart.com/page.jhtml?type=product&id=product21166&site=&rsc=
she has one very "tall" large bat in her collection which would be harder to do with bondage tape, I feel.
Here's a picture of the bats I made:
Here's what you need to make these:
Black (or whatever colour you want) bondage tape
some paper tissue or toilet paper
oil pastels (like craypas. nothing fancy. needs to be light coloured or white)
Cut a length of bondage tape
and draw a bat on it
cut it out
clean off the outlines with some toilet paper (just rub it off)
slap onto a nearby, clean, shiny surface.
Thinking about this now, you could slap these on your car, make any sort of silhouette, etc. I'm thinking of doing some spiders too. This is my first tutorial and I'm not sure how age appropriate bondage tape is either
so feedback would be nice!
edited: checked Ann summer's website and they're now calling this stuff PVC Body Wrap in the bondage section.