.. Catching a rabbit: Remote triggering mechanism

I think the most usual way to remotely trigger a trap is with some kind of rope.

There's vines on the space ship. You can use those.

I think you should attach some kind of a twig on to the vines.

You will get it eventually. Go forward with other things.

Give a lesson to those racers.

Congrats! Combine the twig with the vines.

You have a trap-trigger contraption. Prepare the bait.