The Spoonflower Handbook is here!
Another version, with a mirror repeat which gives it a quite different organizational feel is 'Color grid 31 variation B'. Yet another version is 'Happy birthday color grid' - with lots of blank squares to write names in!
Designed for a half-drop repeat (all edging lines are equal).
[Currently set @ Fabric: 247 ppi, swatch = 8 x 8 squares; Wallpaper: 246, Gift wrap: 340 ppi]