M.P.
Here's a small easy thing to do in addition to anything else you decide to do. Go to a party store and buy 65 birthday cards (you can buy a box of birthday cards for something like $5, I think you get 20 cards in a box). Then give 65 friends/family/acquaintances/friends of friends, etc each a card and provide them with a stamp and you Mom's address. After they address and sign them they give them back to you and you mail them in time to arrive on her birthday!
Another idea... you can give her 65 $1 scratch off lottery tickets.