Despite the name, this is open to all things obscure from childhood or adulthood or any stage of life that are underrated or simply entertain us.
Like sidewalk chalk, playground slides, or that apple with a rope and a worm and holes in it that worked as a surprisingly effective mace because that thing was super hard.
RULES: Only made-up or silly numbers, all entries must have an image, anyone can submit one.
Number Potato: Remember Pattern Blocks, those thin colored blocks that were in geometric shapes, like Triangles, Hexagons, Squares, Trapezoids, Rhombuses, and Kites? Those were amazing, and I still play with my set at home.
Number Entropy: that apple with a rope and a worm and holes in it that worked as a surprisingly effective mace because that thing was super hard.
Number Riboflavin: Those connector toys that were colorful and usually had six sides and it took me the longest time to find a picture of them on the internet because there is no good way to describe these in a way that a search engine can understand: