Ha! My daughter brought me back a Hot Dog Johnnys coffee mug and one of those yellow HDJ teeshirts one time. I think she was on Route 46 when she went up to Mountain Creek on a ski trip one time.
My husband bought a 50th anniversary mug at a yard sale here on Long Island, a few years back. Family members thought it was great fun to use it.
Since then, my daughter and son-in-law have remarked several times that they see signs for HDJ while they are traveling along I-80 on their way to visit her in-laws near Pittsburgh.
For fun, I gave her HDJ mugs, a cap and a yo-yo for her birthday.
No one in our family has been to the restaurant, yet.