turps

Uhm, tape is a bad idea.

If the tape is ONLY on the boot, it could work, but it's too easy for tape to come undone unless you use something like duct tape, and you want the boot to be removable, obviously.

I'd say velcro is the best bet, possibly with something like heavy shoelace, something flat to run through the slots on the shoe & not bite into Brock's leg, then with velcro on the end to secure it.