Can you give me ideas for celebrating my grandson's 15th birthday?

Here's some Pinterest ideas:

https://www.pinterest.com/explore/15th-birthday-party-ideas/

Guys love food! How about taking a small, low box and covering it in decorative paper. Inside glue down a piece of styrofoam used in packing you may have around the house or floral foam you can get at the Hobby store. Add some crumpled up tissue paper (in maybe his school colors); then tape his favorite snacks onto wooden meat skewers at the back of snacks and stick them down through the paper and into the foam!

Bright bold neon

Use his favorite sport and use it as way to decorate his special gift And if you can give something relating to that sport .

Get him a money tree they are plastic and put 15 one dollar bills on it