As I already had the machines threaded up in burgundy I cut into a remnant in a similar colour, though I did change the needle of the sewing machine to a stretch needle.
As the fabric was a weighty 100% cotton knit with no stretch I chose a simple boxy pattern - The Closet Core Tee - which is a free pattern.
I made the 3/4 sleeve version, in a length somewhere between the cropped and the longer length. Due to fabric limitations my 3/4 sleeves were not quite long enough so I drafted up some shaped cuffs to extend the sleeves.
Before I constructed the tee I embroidered a heart in contrast pink thread to add a bit of interest.