So there I am, all set up for an enjoyable session in a set of cuffs I'd bought off of Amazon last year. They had seemed to hold up okay with some lighter play; a pair around my ankles with a short length of chain and a metal clip, and the same around my wrists, behind my back. My lovely 2" black harness ballgag is fastened tightly in my mouth. All in position, I set about struggling gently in the style of a dainty princess.

About a minute in, I struggle a little harder. Then a little more. I let out a stern verbal protest against my imaginary captor, tug my wrists apart and... ping! My wrists fly apart, my Hulk-style strength has ruined both the cuffs and my scene, and I learn that yelling 'god damn piece of fucking crap' is guaranteed to make you drool while wearing a thick ballgag. So, now I must go cuff shopping for proper equipment!

What's a BDSM or kink-related item, piece of equipment or similar that you cheaped out on in the first place and regretted it, or decided from the start to spend the extra money on getting something quality?