Astronomy Day Weekend 2019 is Friday and Saturday Oct 4-5 and this year the A-Day committee is offering the option of ordering t-shirts online.
Pickup is either at the All Clubs Meeting held this year at the Trini Mendenhall Community Center or at Astronomy Day held at the Insperity Observatory. T-shirt sales will also be available at A-Day, but not at All Clubs.
To order yours follow the procedure here: https://www.astronomyhouston.org/content/online-process-ordering-2019-day-t-shirts Sales are first come, first served. If we run out, we will return your money.
Pricing: $16/shirt for sizes S, M, L, XL; $18/shirt for 2XL; and $19/shirt for 3XL.
Here's the t-shirt artwork. Nice!