Anyone ever try bicycle are warmers? I understand they are very popular, you wear a short-sleeved shirt and add arm warmers, then remove the warmers when no longer needed. The thinner versions also provide UV protection.
They are very cheap from China, see:
They also come in thicker fleece versions for a few dollars more each. Note that the listing above is per sleeve, i.e. you need to order two of them if you have two arms (or three if you’ve got extra arms).


