Finished the Kolibri swatch today. I've decided to go with garter stitch. If I have enough leftover, I might make a stockinette one, too.
If I get a chance this afternoon, I'm going to figure out the number of stitches/rows my pattern needs. I've already got a schematic with the measurements (not to scale but taken from another tank I like). Hopefully, I can cast-on tonight.
I really want to be able to wear this tank to our company summer outing July 2. Think I can get it done?