It's absolutely true that you can do almost anything with ModPodge. I LOVE that stuff. I recently stumbled across this Tinkerbell Shoes Tutorial from Wildflowers & Whimsy and couldn't resist. We already had a pair of plain green shoes (clearance rack at Walmart! ALRIGHT!) so we got right to work with the glitter and the ModPodge. The little white ball was superglued on - I seriously have no idea how on earth you'd really be able to sew a stitch through the finished glitter/ModPodge/sneeker to sew it on - those shoes are pretty stiff!
Little Lady A was so excited about her Tinkerbell Shoes I had a hard time convincing her to take them off for naptime!