I just compiled P.Funk principals' collaborations with artists outside of the P.Funk 'core group' - I excluded songs like by rappers who sampled p-funk and then later worked with George Clinton & Co. (e.g., Bop Gun (One Nation)). Here's my current play list (in no particular order):

Produced by George Clinton

• Sexy
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• Get Lucky
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• Hot Sauce (co-produced and written by George Clinton)
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• Freaky Styley (my favorite song: Hollywood, a cover of Africa - the album also features Garry Shider, Michael "Clip" Payne, Steve Boyd, The Horny Horns, Maceo Parker, Fred Wesley)

Featuring George Clinton

• Ugly
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• Funky Jam, Give Out but Don't Give Up (Primal Scream's Bobby Gillespie can be heard on Lost Dog
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• Keepers of the Funk
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• May the cube be with you (plus Jessica Cleaves, Rodney "Skeet" Curtis, Debra Barsha, and Dennis Chambers)
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• Work That Sucker to Death (plus Bootsy Collins)
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• Leave My Monkey Alone (arranged by George Clinton, feat. Amp Fiddler, Blackbyrd McKnight, and the Red Hot Cili Peppers' Flea)
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• Magilla Gorilla
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• Baby Go-Go (written by Prince under the pseudonym J. Coco, also featuring Graffiti Bridge collaborator Mavis Staples)

Produced by George Clinton & Bootsy Collins

• Kickin' The Do

Featuring BOOTSY

• Big Enough (plus Bernie Worrell and Maceo Parker)
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• Disco Lady (plus Bernie Worrell and Tiki Fulwood)
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• What Crime Is It? / Victa
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• Cajun Moon (plus Bernie Worrell, the Randy Crawford album "Naked and True" also features Fred Wesley)
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• Jealousy, Tragedy Street (the Dave Stewart album "Greetings from the Gutter"/the EP Jealousy also feature Gary "Mudbone" Cooper and Larry Fratangelo)
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• In The Sunshine (plus Maceo Parker), Slow Motion

Featuring Maceo Parker, Pee Wee Ellis, and Fred Wesley (as The J.B. Horns):

• Jamming

Do you have any favorite collaborations you'd add here?

My Last.fm P.Funk page / My Last.fm P.Funk stream