These vintage wooden signs depicting the Zipper People are up for auction on eBay with a starting bid of $99. The rendering’s resemblance to the real Zipper People is uncanny. From the auction listing:
The “Zipper People” are believed to be the folk art signs that marked the entrance to the Zipper Ride, a famous roller coaster, one of which was on the Daytona Beach Boardwalk for many years. They are believed to be from the 40’s, though the 1950’s is possible. Both are painted on wood board and have a hard shell finish. There are a few nicks here and there, but the condition is remarkable for the age. Both have mounting brackets which are visible in the pictures. Great americana for your collection. Each is over 6 feet tall.
Link (Thanks, Michael-Anne Rauback!)