Lol I love this thread!
I call them collectively the Chu-Chus or My fatties/fuzzies or the Chin-bobins. Hahaha...
Peach - Chu-Chu-man, Peach-cakes, Peachy, Peach-man, Peachinski
Pumpkin - Nezzer (...He's always sticking his little nose out of the bars...lol) Kinny-Kins, Pumpkin-Nez, Pumpkin-man