De La Soul

The Sk-5 can be seen at 3:59 in the "3 Feet High and Rising" press kit video. Prince Paul also mentions using it with De La Soul in this interview: https://medium.com/micro-chop/make-those-records-you-make-prince-paul-reacalls-the-making-of-de-la-soul-is-dead-d72af2ddeaf6 From that interview:

Gino: I’m amazed that you guys were utilizing an SK-5. I know that’s a very limited sampler. Did you just use the external mic device to sample?

Prince Paul: I honestly don’t remember. I still have that sampler, but it’s in my attic. I think there was a mic input and it also had mic built in on top of it that you could speak into. I think we just plugged into the mic input and sped samples up. Obviously the sound was kind of jacked up, but nobody was concerned about quality back then. We were just impressed by the novelty of sampling. Everyone was like, “Ooh, I can take a piece of something and play it on a keyboard.”

In this 2014 interview, Posdnuos mentions the gear used for "3 Feet High And Rising". From the interview:

"We made the whole of 3 Feet High and Rising for $13,000, using just a Casio RZ-1 drum machine/sampler and another gadget called an Eventide harmonizer, which allowed us to match songs that had totally different pitches – we could put Daryl Hall's voice over a Sly and the Family Stone record. It was amazing."

In this 2014 interview, Posdnuos mentions the gear used for "3 Feet High And Rising". From the interview:

"We made the whole of 3 Feet High and Rising for $13,000, using just a Casio RZ-1 drum machine/sampler and another gadget called an Eventide harmonizer, which allowed us to match songs that had totally different pitches – we could put Daryl Hall's voice over a Sly and the Family Stone record. It was amazing."

Video footage around 04:07

Video footage around 04:07

Video footage around 04:07