Lightweight post-it holder. Could be either attached by double sided tape (I use this to de-clutter space on my desk). Or it can also be used as free standing.
Internal width is 9 cm, so it fits even a bit bigger version of post-its which is made by some vendors. The depth of each compartment is 12 mm.
The author remixed this model.
Removed pegs, changed to contain only two compartments and a bit resized.