You can read the field notes on catching a rabbit at the vegan daycare.
Field notes on catching a rabbit: It seems traps can be constructed using bait and something to hold the bait in place, combined with some sort of remote triggering mechanism.
Here's the instructions:
This is the low-spoiler guide for "Catching a rabbit" puzzle in Justin Wack and the Big Time Hack. Unlike in normal walkthrough, you get gradual hints on how to solve the puzzle. Click the big button below to see your first hint. If the hint contains a spoiler, you will be warned about it before clicking.