"Fundle Bundle" is an homage to a local Scranton children's program called "The Land of Hatchy Milatchy," which aired in the 1960s and 1980s on WNEP.
Delaney Ruth Farrell, the actress who plays Toby's daughter in this episode, did not continue acting for long, but made a cameo in one of the final episodes, Free Family Portrait Studio (2012).
Michael (Steve Carell) asks the kids if they like Dane Cook, and all enthusiastically reply that they do. Carrell appeared alongside Cook in the film Dan in Real Life (2007), which came out the year after this episode aired.
Micheal (Steve Carell) mentions his mom lives in Dickson City, which is a suburban borough of about 6,100 people about 4 miles north of Scranton.
Dwight reads Struwwelpeter (1845) to the children but is interrupted by Michael before he can finish.