So. there is the idea. i'd like to see some ideas for a run.

This is a good place to start.

Well, there's getting the recipe for whatever thing (Everlasting Gobstopper, Levitation Soda) or obtaining a spell formula (Turn to Giant Blueberry, for example). Rescuing someone who had been on a tour is another possibility, as is trying to sabotage production. Or maybe Mr J needs a live Oompa-Loompa for some reason.

Oompa-Loompas are some kind of extra-creepy Dwarf metavariant; maybe they can use Teamwork for Spellcasting as if it were ritual magic, but all spells require rhyming (oompa, loompa, doopity-doo, unauthorized intruders Turn Into Goo). Disturbingly, it could be an HMHVV-type thing going on, so any regular Dwarf could be turned into an Oompa-Loompa after being Essence Drained to zero (oompa, loompa, doopity-dessence ...).

Wonka himself is either an Immortal Elf or a Free Spirit and becomes extremely intimidating and scary in his true form:
www.youtube.com/watch?v=Tya1UixPX2Q
Are the fires of hell a-glowing? Is the grisly reaper mowing?

Oompa, Loompa, Doopity-danium
Eat a full clip of depleted uranium

Willy Wonka and the Zero point facility. An excentric scientist opens up a hidden facility for just one day and whoever wins gets a tour with a few of his best mates. Basically everyone is trying to kill everyone else and steal as much tech as possible while Willy isn't looking. Maybe if he is focused on telling the group about a new explosive micro drone, the Troll from team A pushes team B's adept over a railing resulting in an eighty foot plunge. Lots of warding, and living walls. Everyone trying to grab as much hidden tech as possible and hoping that the last team alive will be able to leave with their loot? Crazy man just Crazy.

This is comedy-gold. You, sir, win the Internet.

Don't forget that all Oompa Loompas learn Gymnastics (Dance)

Get genetic sample from an Oompah-Loompah. A competator believes they carry a form of HMHVV, maybe ghoulish dwarves who can only eat chocolate. He wants proof to spread the bad PR.

Paranoia TM in my Shadowrun.

Oompa, Loompa, doopity daster
That is a public image disaster.

"Fry and the Slurm Factory" plus "Queen Euphoria" equals fun.