50th Anniversary Celebration TShirt

My parents Art & Vida are celebrating their 50th Anniversary this summer. I need a great "mark" that includes the number 50 to put on Tshirts for the event

My family has a tradition of designing a logo and Tshirt for important events. My parents Art & Vida are celebrating their 50th Anniversary this summer and I want a really amazing logo/mark to brand the events. Logos for past events we have done have been very graphic in nature, quite contemporary and bold.

- The mark should at least include:
- A (or Art) representing my Dad
- V (or Vida) representing my Mom
- The number 50I like orange, red and apple green as colors. Black and one color is fine or multiple colors is ok to

Style should be contemporary, clean, graphic like the Armani Exchange http://www.armaniexchange.com/ but with a bit more happening

- I don't want anything that says "Happy 50th Anniversary" This is meant to be a logo for the celebration weekend.
- I don't want this to look like clipart
- I don't want it to be overdesigned. It should be simple