I've never seen marballizers at Wal-Mart. Wal-Mart carries crappy paint. Marballizers are normally about $65/1000 here, I've seen them for sale down to $40/1000, but that's about the lowest. Marballizers are great. Those and PMI Premium are probably my favorite.

 

Ok...so stay away from electrical triggers and worry about gun later...just buy a good mask....