2 charm packs plus just a few extra from your stash make a very nice size queen 'tumbling blocks' quilt---MSQ you of course use a white to sash on two sides of the block. i think i added about 6 squares of yellow.
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Don't forget about the Nickel Quilt books, they were specifically for 5 inch squares.

Oh and I do have a nickel book hiding someplace.

Amanda murphy has a craftsy applique class that has a cute charm pattern, you might see if you can buy it single on her site

Looks like it is only in the class but it is a very cute swirl pattern

I made a Falling Charms quilt and it is very easy to do and looks great.

Check out a pattern by Fons and Porter called crazy eights. It make a medium sized quilt, but with eight packs you would have enough to enlarge it.

Also D4P. I used charm packs for one only they were oversized measuring 6 inches. Set together with sashing and it is one of my favorite quilts.

Jenny Doan does a pinwheel block where she sews 2 charms around all 4 sides then she cuts from corner to corner on the diagonal both ways, you end up with 4== 1/2 square triangles

me too, I will have to get that book out.