Toilet paper tubes painted black turn into bats with the help of red pipe cleaners (for hanging upside down), white paint for a vampire face complete with fangs, el hada de papel for this nifty idea.
Get the instructions here:
http://www.elhadadepapel.com/2013/10/halloween-murcielago-halloween-bat.html
TP crafts takes a toilet paper tube, black paint, and construction paper and turns it into a vampire bat for Halloween.
Good for ages 5 and up.
Get the instructions here:
http://tpcraft.blogspot.com/search/label/Halloween
Easy child crafts has a similar version.
Get the instructions here:
http://www.easy-child-crafts.com/craft-ideas-for-halloween.html
La dee da creations fills her version with candy.
Get the instructions here:
http://ladeedacreations.com/2012/10/kids-crafttoilet-paper-roll-bats/
Filth wizardry adds construction paper wings and bright red eyes.
Get the instructions here:
http://www.filthwizardry.com/2009/11/toilet-roll-bat-fun.html
Molly moo crafts makes a silly version.
Get the instructions here: