Where to find Boffer Materials

In a related matter, how do I make throwing knives?
I know they are to be "core-less," but am I supposed to use squishy foam, hard foam, closed cell foam... what sort of foam are we looking at?

all the throwing weapons i've seen were closed cell.

Alex, please do not answer rules-based questions unless you are a Rules Marshal.

All throwing weapons need to be Open Cell foam, or there are also coreless latex weapons sold as well.

on another some what related issue arrow tips are open cell but what else under the tape thinking of making a an archer or ranger like character

Under the weapons and armor section there is an article. Here is a direct link: www.knightrealms.com/index.php?option=co...iew&id=268&Itemid=62

sweet ty