Are you looking for a wall mount display? If you are I have not seen any that will take the Sweet Spot thick cards. If you have the time and skills you could build on your self. Some time ago a member showed how he displayed a GU set with a extra thick frame he got from a craft store.
I have one card that takes a 10 count Snap-Tite,..I don't move it much,but it's well protected and fits perfectly,.
I haven't shop product in a while but they use to make a U shape plastic clip
that fits perfectly on a simple Top-Loader.They are great to have around too.