IMO, you should do 4 coaster/set so families can use them and even single people can use them when they have company. But first, it depends on what you can afford in your budget and go with that. I wouldn't break the bank over it.
I ordered a set of 2 for each attendee. Instead of pictures, we are putting monograms in the center that we prepare ourselves with a printer. That way, with each person getting 2, a married couple will have 4, and they are personalized/monogrammed for them. We are attaching the table placecards to each, so we can kill 2 birds with one stone, so to speak.
I will say that if you get these, they have a very light greenish cast to the edge, are not white as they appear in the picture. They have other coasters as well there, not sure if they are the same price as the site you mentioned in your post.
Re: Coaster Favors
I ordered a set of 2 for each attendee. Instead of pictures, we are putting monograms in the center that we prepare ourselves with a printer. That way, with each person getting 2, a married couple will have 4, and they are personalized/monogrammed for them. We are attaching the table placecards to each, so we can kill 2 birds with one stone, so to speak.
I will say that if you get these, they have a very light greenish cast to the edge, are not white as they appear in the picture. They have other coasters as well there, not sure if they are the same price as the site you mentioned in your post.
Good luck.
Please let me know where you decide to order from and how they work. I would love to do Coasters as favors.
Here's a great link: http://thefavorlounge.theaspenshops.com/Search.aspx?q=coasters