Oh, sure!
Let's see, off the top of my head, some of my absolute faves besides the ones you listed are: Rama Lama Ding Dong and Six String Orchestra (both songs are in the Mark Hamill episode of TMS), any Don Music song (like Mary Had a Bicycle), Letter B (sung on SS by the Beetles), Dream Girl Lover and How Wide, How Far, How Long (both sung by Junior Gorg on Fraggle Rock... and really, any Junior Gorg song is great!), Free and High (sung by a Richard character, the Magical Spider-Fly, in a duet with Wembley on Fraggle Rock), Rockin' Robin (sung by Janice and the Electric Mayhem), Proud to Be A Cow (sung by Gladys the Cow on SS), The Peace Carol (a Christmas song sung by Scooter and John Denver on John Denver and the Muppets: A Christmas Together album). Rev (sung on Fraggle Rock) is another great one, too! Hmmm....
Let's see, that's all I can think of right now from memory. Placido Flamingo songs are always so much fun, too, but I'm having a bit of trouble right now thinking of specific names of his songs. But I'm sure others will have really great ideas, too! Their memories are better than mine are, lol!
And I hope this helped you a little bit, Mr Devco!