Ideas for 50Th Birthday Present

When my sister turned 50, I made her up a bag of things, everything that I could find that came in packages of 50. I discovered that many, many things came in packages of 48! But she got a bag of funny items - a roll of pennies, a bottle of some kind of vitamins, a package of googlie eyes like for crafts, a package of safety pins, a bunch of other stuff. I supplemented it with my favorite book for birthday girls, "It's My F-ing Birthday" by Merrill Markoe.
I hope your sis enjoys turning fabulous 50!

On my 40th a friend gave me a bag of 40 suckers because "40 sucks". I suppose it would work for 50 too.

for no money...
50 reasons why you love her/care for/appreciate her. or get family/friends to pitch some of the ideas in.

written on nice slips of paper put in to a nice jar or box.

or done nicely in a word processing program and then framed.

Maybe a special necklace.. Birth stone necklace blue Nile... Or red envelope has some special sister necklace.

When I was fifty my sons made an electronic photoalbum for me. Not sure what you call it but best ever present!