I like to do needlepoint and petit point (needlepoint except it's smaller, think minimum 25 stitches to 75 stitches per square inch). I like to work in the 42-48 per square inch range when the eyes cooperate. The smaller scales look more real in dollhouses, adult types, not ones kids would play with.
A rose that is somewhere in the 40s per sq inch stitch range made as a present for a lady that I have got to get sent to her. In real life, that would equal about 16 inches x 16 inches instead of 1-5/16 inches.
A rug worked in 24 per square inch. I don't remember its exact size, but it would be a full room rug for a good sized parlor. It's close to 6x8 inches.
I also have a finished Cluny tapestry that took well over a year to make, but I'll have to find the finished picture, as well as a couple of small, Cluny inspired pieces. The tapestry was worked on 48 count, that's over 2300 stitches per square inch.
I've barely gotten started on a Heriz rug piece for a good sized dollhouse room. It's a 48 count piece too.
My eyes are getting old and don't tolerate working that small for long anymore, and I hate to use magnification, so it's slow going.
I'll take a break and do something fun from time to time, a SuperWhoLock bookmark for DD, Supernatural, Dr. Who, Loki, and Sherlock. Self designed and charted.