Well, then Wayne would be the best possible name!
What about droping the middle name altogether?
Try one of the great foods of the world:
John “Bacon” Smith
Vito “Calzone” Mancini
Harold “Pretzel” Jones
Frank “Dorito” O’Riley
I think you’ll agree these are all unforgettable. But there are many more to choose from; the world’s your oyster.
Michael is a good, all-purpose name. It goes with almost everything, everyone knows how to spell it and pronounce it, and it’s not ludicrous.
How about “The?” Alfred The Great and Atilla The Hun swear by it.
I chose my husband’s last name to be my middle name when we got married; if your wife’s maiden name is do-able, it might be an option. 
Quinn
Steven
Vincent
David
Samuel
Marion?
Why don’t you give us some to choose from? Do you have some names you like?
We’d be remiss not to mention Barney Stinson’s suggestion: Wait For It (Waitforit?) As in John “Wait For It” Smith.
Danger or Trouble.
How about World? Let’s you keep your initials. If your current name is Meta Wayne Peace, though, nevermind…
This is a long shot, but have you considered keeping your first name as your middle name, and getting a new first name? Lot’s of people go by their middle name, so you wouldn’t have to have people change what they call you.
Other W names that can make good middle names would be Walter, William, or Wallace.
Cecil
Bucket of fish(just imagine a drummer playing that)
So does Smokey…
Seriously, I’ll share mine - “Galen”. Sort of ties with surgery nicely.
Is it nitpicking to point out that the fire prevention awareness bear is named Smokey Bear, not Smokey the Bear?
Something short and stern:
Karl
Leon
Curt
Duke
Hunt (but not if your first name is Mike)
Edward?
Craig?
Timothy?
Matthew?
That’s all I got.
What kind of personal quality would you best like to cultivate (or cultivate the perception of)? Do you want people to associate you in their minds as a helpful person? I mean how cool would it be if you could very accurately tell people “‘Helpfulness’ is my Middle Name”?
Do you have an area of expertise you’re particularly proud of? For instance, knowledge about propane grills. People would say “If you want to know anything about gas grills, just ask It’s Not Rocket Surgery. ‘Gas Grills’ is his middle name!” You’d get invited to all the best barbecues this summer.
Of course, the downside is that you’d probably get stuck with tending to the steaks, so be careful.
That’s it! I’m knowledgeable about horse racing.
“Ask Rocket! His middle name is “Degenerate”.”