If anyone likes to swap only 5" charms, I've found a great group that does nothing but that. They swap up to 10 sets of 12 same fabric charms (1 FQ) on the 15th of each month in that month's theme (yellows, florals, 30's reproductions). An additional plus is that the moderator will accept charms ahead of time and keep them for the appropriate month to swap out so you don't need to remember to send it in each month and can combine postage.
If you are interested the group is
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I don't know haw to turn the above into a clickable link but you can cut and paste.Diana H - PA