Nomad Pixel Buds (2020 version) Rugged Case - Brown (possibly Black as well, but I didn't try)
Use code AP67AIR2POD (-$13.98)
For me it was an additional $6.95 shipping and tax
I'm not sure if they ship for free, once you hit a cart price threshold.
Considering how new the product is, I don't anticipate a bigger discount anytime soon, so I bought a pair