Snap-together Icosahedron (d20)

thingiverse

Print twenty triangular modules and snap them together to form a smooth surface on every side of your d20! Print without a raft or supports, assuming your printer can handle small overhangs. Snapping them together one-by-one would be nearly impossible, as the final piece doesn't have enough clearance; instead, construct two 5-sided pyramids and snap those onto either side of a ring of ten.