Does anyone know a good around-the-house item that could be converted to use as a post for a street sale sign?

Question

(I have a dry erase poster paper but don't have the posts to put it up at the busy street.)

Answer 1

Plant  a broom or rake handle, long handled paint roller stick or mop handle in the yard, around six inches deep or so. Fold your poster board in half and staple  or tape the sides together. Letter your sign. Slip the open end over the broom or rake or tape to the plain handle.  

Answer 2

A broom handle-you can bang the handle into the ground and hang your sign onto that. Just do not forget to take it down after your sale. Good luck