We made bubbles for Gabby's birthday party. Bubbles are easy... dish soap and water.
If, however, you want giant bubbles that don't pop easily there is a recipe:
6 c. water
1 c. Dawn dish soap
1 T. glycerin (first aid section of most pharmacies)
There is actually a science to this. Check out this article, it's pretty interesting!
And I would be remiss if I didn't say this... Happy Birthday, Mom! I love you!