I agree, both ideas sounds good. I like it.
Anyway...
Origin Of A Blob
Title Card Sound: 3 year old Mac giggling
After Bloo gets sent into his room for accidently launching a coconut cream pie on Old Man River's face, the gang turns to Mac, asking him why he imagine someone so mischevious like Bloo. So Mac deciced to tell them the full origin of Blooregard Q. Kazoo.