FREE DOWNLOAD: ICICLE BOX WITH FOLD-DOWN TOP (ABOUT RUBBER STAMPING; KATE PULLEN)

Doesn't have to be an icicle...I think 'pointy-end box' is a good title.  Guess the title doesn't really matter cause this handy is exactly that.  BTW: Print the template on inkjet-printable acetate...it'll withstand multiple tracings.