My brother found a couple of peripatuses in the bush in New Zealand and tried keeping them as pets in a terrarium. Cute little things, like big slugs with velvety dry skin and about 30 little Michelin Man legs.

I never saw them eat, though. Their feeding strategy is extraordinarily disgusting (there are probably videos). One of them disappeared, probably because it was cannibalized.

The 11th Edition Enclopedia Britannica (1914ish) goes completely over the top with an article of several pages about their genus (Onychophora) with beautiful anatomical drawings.