hobbytoolsupply via Amazon offers Prime members the SE Glow-in-the-Dark Brass Compass
with free shipping
. (Non-members can spend $25 or more to get free shipping; otherwise it adds $5.58.) That's the lowest total price we could find by $3. It measures 2" in diameter.
Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months.