At one point, (30 yrs ago) I had a huge stash of bits.
The internet did not exist, but I found a pattern somehow that was an afghan consisting of 20 strips, all single crochet.
Each strip had a unique pattern, one was a Greek key pattern, one was cirles,
When finished, it looked like something out of a Mayan temple, it's still in use, & the compliments continue to roll in.
I no longer have the pattern, but you could easily make one up, then it's not only something you made, but designed as well.