OK, so I'm not a bride (thank goodness that whole ordeal was over almost 4 years ago! LOL)
Anyway, DH and I have been invited to his co workers (one level of management below him) wedding. I never had heard this girls name until the invite came and I had to ask who the heck it was LOL I visit his work regulalry and had never met her.. he's worked there almost 4 years now! He says they aren't close but do see each other almost every day. Apparently she invited almost everyone they work with!
Anyway,
A) whats the general rule of amount of the gift?
She has a registry, although there isn't much on it.. just some very random things like cheap utensils and super expensive sheets and bathroom accessories. DH has also mentioned more than once that she has verbally said she wants nothing on her registry (she only did it as a formallity) and she'd prefer cash. <insert eye roll here>. When people put $200 sheets on their registry but then ask for cash because the "need it".. I give them the side eye. I have no problem giving cash... but when its requested... I just want to spite them and buy junk off the registry!

Would this be a cute idea?
I'm all about unique gifts/cute things. I was going to buy her napkin rings, and insert $$ in each one. 12 napkin rings with a $10 bill in each is $120 (rings will cost about $40). Cute? Tacky? Cheap looking/sounding?
TIA!

M: 31 DH: 34
Dx: PCOS, Endo, Uterine Septum
Ovarian Wedge Resection - May 2009
BFP #1 - October 2009 = DS
BFP #2 - June 2011 = DD (Total Surprise!)
Tree nut allergy in DS diagnosed 4/2012. Currently working with EI for SPD and possible ASD.