73' B3 340 Duster pro touring build

If the big rubber titties are a no-go...what about a couple of 50 cal barrel ends sticking out a few inches? ...kinda James Bondo style....
You could always wrap a toe strap around those babies and delete the hidden hook.

I know a guy that works around big military aircraft and he could probably "borrow" a couple....just sneak em out in his lunch pail.

Once again...outside the box
It's what I do.