Quantity of Favors...

So I think I'm doing these:These

but my friend brought up a good point- should I do one per couple- or one per person???

one of our friends gave them out lol they are really good too, not cheaply made at all. cause they get stuck to FH's glass all the time and fall to floor and havent chipped cracked or anything.

they gave one to everyone, but to be honest no one at our table took theirs so we took everyones lol (we just moved in together and needed them) you could prob get away with one per couple. i think they came two in a pack.

For this favor I think you can do one per couple, since there are 2 coasters in each pack.
I think only edible favors should be 1 per person.