Most shops do not sell sandbags for Weightlifting. That being said there is no national shop that sells sandbags for this purpose.
Any person at any athletic level can benefit from the ulitmate sandbag. It is a good exercise for anyone who is able to handle picking up the sandbag. You do not have to be very ahletic to use one.
You could call around to gyms and find out if any local ones provide them. You could also order and if you do not like it, return within the timeframe of their return policy.
To hit them really hard, as if hitting them with a sandbag
That depends on how much sand is in it. You should be more specific to what kind of sandbag it is.
revetment
You can't play as the sandbag. (EDIT) Yes, by doing action replay.
Sandbag is not a playable character on Super Smash Bros. Brawl, it was made to be more of a punching bag.
0.5/inch
No. u can not play as sandbag in super smash bros brawl but u do get to use him as ant item.
Believe it or not there are websites that feature sandbag workout routines. One certified workout is at: www.ultimatesandbagroutine.com. Sandbags are a great way to lose weight.
sandbag
I have never heard of a sandbag workout. Your best bet would be to check with the local gym and see if they offer an instructional class to demonstrate how it works.