shopDisney has the Star Wars: The Mandalorian Baby Yoda/The Child/Grogu/Whatever Backpack for $30 - 40% off with coupon code SAVE40 [Exp 8/29] + $0 shipping when you scroll down to the lower left hand corner and sign up for emails (unique free shipping code comes via email) = $18 shipped. Optional personalization adds $6.

Other Backpacks are also 40% off with the same code.