ORIGINAL: Hotburn76
I have the Block target and as time goes by I like it more, being shot at alot must be helping it. The one handed arrow removal is a total lie though. I bought the block cause the few bag targets I tried my arrows went through them, or at least enough to ruin the vanes. I here some say hanging a bag target helps alot too. As Dan said the home made version starts out with alot of wal-mart bags and some scrap cloths and you pack it in as tight as you can into a burlap bag and you are good to go. Never done it, but thats what they say. I think DNK can offer more details on the home made version stuff.
I have a Block target and a Block 4X4 and I find the later much better. The former leave tons of foam slivers all over the place. It is so much easier to remove arrows from a foam target if you spray the arrows with silicone or pam.
Bag targets last much longer if you hang it and once the arrows go in noticeably deeper just flip it face down and jump on it a whole bunch of times and its back to normal. I own an automotive shop and a very large amount of garbage is plastic wrapping or plastic bags. Stuff a burlap or feed bag really tight with the material (cloth as smoke suggested works well too) and tie it up and then put it in another bag and tie it up tight. Works really well but like bag targets you have to the same dance on it when the arrows start going too deep. I hope this helps! Do not spray the arrows when using bag targets.