This is probably my favourite technique for using up scraps and odds and ends- punch or cut into squares and make a mosaic.
This one was made from the strip that some of the embossing rubbed off on.
It fit nicely onto a 5x5 card, as the squares are a little larger.
These ones are on a 4x4 base, and I used a 1" punch for them.
Also 4x4, and used up all the remaining green/yellow bits.