Bobs,

Once there was a community of Bobs,
who ate cotton swabs.
One such bob, going at extreme velocity,
turned the village into a monstrosity.
Another bob ate too many green blobs.

Fred,

Once there lived a Fred
Who liked going to bed,
his worst foe was a purple bro.
Whose name was Moe.
Fred has a bald head

Epilogue:

Now you can still visit Fred, he lives in a grand old shed.
He is 150 years of age and still not dead.
But when the reporter asks him, he claims he survives on fish oil, yoga and lead.