LIDL is selling a magnetic knife block (no knives included.) I've bought one for my craft room; I've got it on my desk and am sticking the dies I'm "currently" using on it, instead of having a messy stack of them which then get buried under papers etc.
It's not cheap, at £7.99, but it suits the way I work and might be useful for others. If you're a neat and tidy crafter, you probably don't need one.
The magnet is really strong; it's difficult to remove the dies unless an edge overlaps the board.