Yep, you read it right... For those of you with a bondage bent, I have found a HUGE pair of leg irons that will fit around your rubber boots!
They are: Chicago Model 2500 Boot Cuff Oversized Leg Irons. $45 at the Handcuff Warehouse: http://www.handcuffwarehouse.com/chmo25bocuov.html
I wear US mens 11 / womens 13 boots, and these cuffs fit with clicks to spare.