Pogo has re-released 50 previously-retired Mix-n-Match badges and are on sale for 12 gems each until August 6th, 2021
To find these badges easier, sort by "On Sale" and look for the badges marked "Re-released".
https://www.pogo.com/challenges?filters=MNM%2CON_SALE%2CUNOWNED&sort=RELEASE_DATE_REVERSED
(https://i.imgur.com/1ZhYQY5.gif)
A few of these are worth 400 Pogis, and may be worth picking up.
I got some 400 challenges!
Love the gnome, CatfanciePants
Nice! Those are worth picking up.
Also, just a reminder that today is the last day to grab these badges!