The same thing happened to me. A lady at my quilt group gave me a bag of triangles and I wanted to find something to do with all the HSTs I made from them. I ended up with this:
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I saw the varieties of ways to do 16 patches with HSTs on Pinterest. Any one of these blocks by itself would make a great quilt.
Here are some more ideas for you:
https://www.pinterest.com/search/pin...autocomplete|1