Wait, seriously? Nobody is selling a birdhouse shaped like a d20?
from Wikipedia...
D20, D-20 or d20 may refer to:
Arts, entertainment, and media
Arriflex D-20, a film-style digital high definition movie camera
d20 System, a system for role-playing games
d20, one of the polyhedral dice used in such games
D-20, a version of the Roland D-50 synthesizer
Dimension 20, a tabletop role-playing game show made by CollegeHumor
Queen's Gambit Accepted, Encyclopaedia of Chess Openings code
Military
152 mm towed gun-howitzer M1955 (D-20), a Soviet artillery piece
ARA Almirante Brown (D-20), a destroyer that served with the Argentine Navy between 1961 and 1982
Brazilian destroyer escort Baependi (D20), a destroyer escort that served with the Brazilian Navy between 1944 and 1975
Greek destroyer Doxa (D20), a destroyer that served with the Royal Hellenic Navy between 1951 and 1972
HMS Fife (D20), a Royal Navy guided missile destroyer launched in 1964 and decommissioned in 1987
Science
D20, a diffractometer located at Institut Laue–Langevin used in neutron research
Heavy water, or deuterium oxide (D2O or 2H2O)
Vehicles and transport
D20 road (Croatia), a state road
Aero Synergie Jodel D20, a French ultralight
Chevrolet D-20, a pick-up truck made in Brazil and Argentina
LNER D20, a class of British steam locomotives
Senova D20, a subcompact car made by SAIC in China
Soloviev D-20, a Soviet turbofan engine
Other
Dublin 20, a Dublin, Ireland postal district
2020 Democratic National Convention, American political convention, branded as "D20"
@Pat
Considering his past with boardgames, I'd have thought a d20 die shape.
@trinsec @Pat Yup, the 20-sided die. Perhaps I should have added the #ttrpg tag. It's a common theme in novelty items:
https://technabob.com/blog/2015/06/16/critical-hit-d20-mug/
https://www.etsy.com/listing/1299754254/large-d20-bath-bomb-4in-full-set-of
I suppose it's possible that someone is selling things shaped like a specific Irish postal district...
Thank you for providing the disambiguation. (BTW, the ttrpg tag wouldn't have helped me because I don't know what that is either. 🙂 )
@trinsec @Pat I do see that someone has MADE one, at least in the correct shape (an icosahedron): https://polyhedr.com/birdhouse.html