Need to make entrails? Who doesn't? Mary Robinette Kowal has the skinny:
To make entrails takes very few supplies. Your shopping list looks like this.
* Unlubricated condoms
* KY Jelly
* Food coloring
* Press and Seal wrap
* Fake bloodStart by filling the condoms with KY Jelly. You'll need about one tube of KY per condom. Add a little bit of food coloring, but don't worry about mixing it evenly. I use 1 drop green to 3 drops red, personally. Tie each condom off making a whole bunch of individual of links.
Note: The KY usually makes really impressive farting noises.
(via Whatever)