Here's the finished article:


(And nope those aren't proper flamenco shoes. Those are my faithful beige Aldo's that I love love love. Proper Flamenco shoes are the next step).
The words on it are Dentro Y Fuera (inside and outside - and how you move your hands).
I slung together a tute, though I'm pretty sure you could work it out yourself! You could totally make this from a little person sized shirt and put little person sized shoes in it. Maybe a PINK shirt and maybe baby BALLET shoes. Maybe.
Anyway, the first thing you'll need is a t-shirt. If it has a cute graphic on it then so much the better.
Got it? Goodo. Now whack a few inches off of the bottom all the way around. Like ziz:



Jam the ruffle between the two layers, then pin and sew:

Then turn it right-side-too and admire your ruffled bottom. tee hee.
Next is the step I forgot to take a picture of. But all I did was sew a tiny button hole (just one) about two and a bit inches down from the top of the bag.
So that when I folded the top of the bag to the inside (to form the casing for the ribbon) the button hole was on the outside: which is easier to see than explain:

Then I sewed the casing down (not worrying about the raw edges - yay for knits!), threaded the ribbon through the casing with a safety pin and a bit of mild cursing and VOILA!
A bag for putting my sweaty shoesies in after stomp stomp clapping.
Oh and the words (which I will totally admit were and afterthought), I added using the leftover scraps of a Colour Your Own T-Shirt kit that my bear has.