One of the original bullet planes:
https://www.historynet.com/bell-x-1-...ange-beast.htm
As I recall, the X-1 was modeled after the shape of the business end of a 50 cal machine gun round.
There was also a (sorta) recent Italian twin engine turbo prop biz plane called (I think?) the Avanti. Same basic fuse shape with two pusher engines and a canard wing up front.