A.L.
We give cash to all the kids we have known who made their first communion.. 25 to 50 for those we aren't as close with and 100 for the extra close kids..
We give cash because if it's like many communions, the kids get lots of religious gifts (my son received about 4 rosaries and a few crosses)
while I am not opposed to religious stuff, I just leave that to everyone else...
Also cash allows the kids to begin saving (if they so choose) or buy whatever they want..
As I see it, cash is meaningful :)