It's the sample-era and lots of new tracks seem to lack creativity in some sense .
Let's focus on the aspect of surprisingly used loops .

A few faves of mine :

Digital Underground - Humpty Dance

Sample : Let's Play House - Parliament

Especially the part in the end where Humpty Hump a.k.a. Shock G shouts : "Let's get stoopid!" , followed by the P-Funk chants "Gimme da music !"
Every time when that part comes up i get crazy & jiggy
Also their inserted clap-loop and low-bass are infectious .

http://youtube.com/watch?v=eJg59EEhI8Y








Not really a direct sample , but inventive how George Clinton used the openingline from Dancing In The Streets in Loopzilla .

http://youtube.com/watch?v=CfioCJQh3t4








Uncle Sam used on his mid-90's album a sample from Velas , a spherish slowjam from Quincy Jones , on the track Throw Your Hands In The Air .
It has been mixed in the intro , but with a backward-spin , so that was weird to hear at first but had me like , dang!


[Edited 9/9/06 13:23pm]

Funny - The Beastie's use of the "Dick in the mash potatoes" sample comes to mind.

speaking of DIGITAL UNDERGROUND, I always loved how they flipped "Ballad of Dorothy Parker" for Wussup With The Luv:

http://youtube.com/watch?...ed&search=
[Edited 9/10/06 7:00am]