Cool strap for a bag

Playing around with a practice bag and found a cool strap that I thought should be shared. :-) Sorry the picture is sort of washed out, hope you can still see the fun detail on the strap. Strap source : https://www.youtube.com/watch?app=desktop&v=slJ-TQ2QLFU&feature=share. Bag pattern : https://www.pinterest.com/pin/572660908887754278/. And the joining method for the two squares : https://www.pinterest.com/pin/572660908887245045/.