This is odd. A website, called ellips, sells these very cool convex shelves. That’s not the odd part. The odd part is that they include measured drawings of the shelves. Knowing the dimensions of the shelves before buying them is helpful for people willing to hand over the cash for the ready-to-assemble cubbies. (The ‘Big Jim 200’ costs 1,120 Euro, which is about 1,500 bucks.) But a measured drawing for DIYers everywhere?? Score!!
Pictured above is the Big Jim 175. ellips's shelves are made of birch plywood, but I'm thinking our old friend MDF might work.