Are there any updates on the Wishbone Bumper? Does any station have it in storage or something, along with the Corduroy bumper and other missing spots such as the "Black and White Boy" series and the Dancing TV?
I encourage you to ask your local PBS station or look around thrift shops/ ask late 90-00s kids in your family if they have old PBS Kids tapes with these bumpers. I asked my station, but they got rid of the bumpers in 2005.