Gardening Methods

What hobby should I take up?

I need a hobby to take up. I have already tried rock collecting, sewing, knitting, cross-stitiching, fishing, origami, cooking/baking, gardening, singing, instruments, and scrapbooking. I need something new to do over the summer.
I am open to any ideas, as long as they are not dumb.
I do have $100 that I can use to start my hobby.
i already am voulrnteering this summer
it needs to be something that i can do alone
i already play sports

Crafts to learn
Free Lessons – Instruction Topics

Check the Crafttown .com site and they will show you a tutorial of something you may like. I have no idea as my selection may be different than yours.

Crochet – - Knit – - – -Embroider – -Chicken Scratch,
Tatting – - Decoupage- – - – Rosemailing,- – -Jewelry Making,
Metal Punch- – Beading, – Stenceling, – - – Candle Making,
Rug Braiding,- -Applique- Patchwork,- – - Dough Sculpting,
Bow Making,- – Silk Stitch – - Painting, – - – - Seed Painting,
Batik- – - – - – - Scrapbooking,- – -Face Painting,- – Quilling,
Cross stitch

Garden Journal Tutorial (Scrapbooking)