How to Make a speargun for under two bucks
Check out this video on how to make a speargun, but more importantly, how to make a spear gun and for under two dollars. All you need is a straight stick or wooden dowel, something really stretchy like surgical tubing, a pair of scissors, a knife, duct tape and a maybe some camo paint.
Weapons aren't cheap, but this one is, so build your own speargun to satisfy your needs. You can go hunting fish, frogs or small rodents, you choose.