Free (swimming) goggles
When you’re in need of “new” goggles, go to your local swimming pool and tell them you forgot yours a few days ago.
There are two things that may happen now:
The Lifeguard gives you a box full of goggles and tells you to take yours.
The lifeguard asks you how the goggles looked like. Tell them “they’re blue. And from Speedo or Arena, I don’t really know.”
Congratulations, you now have a new pair of goggles.