Doctor Who Tardis inspired tissue box cover. Designed for the 4.5"x4.375"x5" tissue boxes. There is a one box version with optional base to give it better proportions.

And if you can print 300mm tall there is a version which holds 2 boxes (1 and a spare) that is very close to the original proportions of the original Tardis. 2 box version printed by Crussty3D (Practical Printing) as one piece on his Prusa XL.

Should print without supports. The inside of the top may have a little stringing to clean up or you can use some supports just in those locations.