Amazon offers Prime members this Star Trek Geological Tricorder
, model no. OCT088176, for $14.99
with free shipping
. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $5.99.) That's $9 under our Black Friday week mention and the lowest total price we could find. (It was $3 less two days ago.) It's designed by Art Asylum and feature authentic lights and sounds. It also includes two removable ore sample containers.
Order by December 21 for guaranteed delivery by Christmas via 2-day Prime shipping.