I don't think you could use velcro because when you put the nappy on, you tend to pull the front of it quite firmly up between baby's legs. Velcro would just come undone, even some poppers do (Tots Bots ones are quite weak I've found). What kind of nappies are you making? If the outer is ok to sew through (i.e. it doesn't have PUL attached to it), you could maybe use those sew on poppers. I still think normal nappy poppers are the way to go though, there must be a reason that all nappy makers use them! I got a pair of snap pliers and loads of snaps from ebay (from Hong Kong or China I think) for cheap, or you can buy them in the UK too from Eco Earth Fabrics but the pliers alone are twice the price I paid with loads of snaps included.
