A small plastic ziplock bag of squares to hand sew into 3D Bowtie blocks - (5 pieces + four seams), it goes fast. I carry another larger gallon sized plastic bag that holds the finished blocks, thread and needle and the bag of squares.
Basically, this is the not so old fashioned version of the
10 minute blocks....( I sew the same total distance... but it twists my mind more! LOL!)