My little sister (who's 9) can't seem to find her "thing". You know, a hobby...a favorite thing to do. What should I tell her?

She and I have been sharing her bedroom lately. Last night, I heard her ask me “Sarah, do you think I have a ‘thing’?” She pointed out that I have beading, our brother has acting, our mom has sewing and knitting, and dad has woodworking. She really doesn’t do anything. I know just how she feels. Last year, I was in this exact situation, but I found a Community Ed. class on beading and loved it. So I know just how she feels.
I’ve tried helping her make some jewelry, but she really doesn’t like it. She said so herself. My mom’s tried teaching her to knit, but she doesn’t feel like it’s her “thing”. We really aren’t sportsy people, so she can’t do sports. She’s getting really depressed and I want to give her some advice, but I just don’t know what to say to her. Any advice?