OR. I could try and fix 'em up so they WOULD stay on. Does anyone else remember those super-cute black Chloe wedges from a few years back, with the big leather ties at the ankles? I sure did. And so I DIY'ed my Lulus to make 'em more like Chloes. And it seems to have worked!
Here's how I did it (illustrated - click photos to enlarge and see detail):
Materials: wedge pumps, leather ties, studs, exacto knife, shoe goo.
1.) align your leather tie where you want it to sit on the shoe. Press a stud into the strap near the bottom edge (but not quite AT the edge, you need something to cut into!) so that its pointy ends mark where it will go.
2.) still holding your strap in place (fyi, I made little pen marks on my shoe to use as a guideline for where the strap went), now press a stud in near the top edge. You want it to be close enough that it will help hold the strap near the top of the shoe, but not so far that the prongs overshoot the edge of the shoe itself.
3.) lay your strap down flat. Press another stud roughly halfway between the marks for the top and bottom studs. Set all studs aside.
4.) Using a fresh exacto blade, gently cut through the leather strap to the backside. My straps were made of nice kidskin leather left over from when I cut a pair of $5 thrifted elbow-length gloves into tiny little gloves that just covered my palms. (a la SJP in that SITC movie - or was it just SITC? I've seen very little of either, really, but I loved those tiny black gloves!) Anyways, I cut a kind of balloon shape with the longest tails my leather scraps would allow, and sewed them into these straps (the bottom of the long thin tube was still open at this point; I didn't bother to sew them shut).
8.) Open those windows! Now, uncork your shoe goo and gently press a little INTO the tube. Wrap the end in paper towels (to absorb and wipe away the excess) and gently press the ends of these tubes shut, sealing them together with the shoe goo.
12.) Step 12: shoe torture. When I applied the straps to the shoe, I first placed them against the shoe and pressed, so the points of the studs' prongs pressed a little mark into the side of the shoe. I then took my exacto blade and made little cuts into the shoe for the prongs to go into (note: if your prongs can go THROUGH the shoe, so much the better. Cut through the shoe, push those prongs through, and use needle-nosed pliers to press the prongs down tightly against the inside of your shoe.) My studs' prongs were too short, so I just made little knicks in the leather to help each prong find its proper place.
17.) Don the lovelies and giggle at your own cleverness. I haven't worn these OUT yet, so I'll keep you posted as to how well this crazy DIY holds up. FOr now, it's looking good!