In Toy Story 3 (2010), Ken and Barbie's designs are based on real life toys from the Barbie toyline. Ken is based on the 1988 Animal Lovin' Ken toy, while Barbie is
Lot - (3) NRFB vintage 1988 "Animal Lovin' " Safari Fun including Barbie with Panda, Ginger the Giraffe and Zizi the Zebra.
1988 Mattel Animal Lovin Barbie Safari Set | eBay
Vintage 1988 NRFB Animal Lovin' Barbie Exciting Safari Fashion & Fun With Panda | eBay