Product designer Elodie Delassus’ ‘Sourisverte’ is an eco-friendly rat trap. The idea is to lure the unwanted rodent into a cardboard container where it eats poisonous seeds and dies. Burying the dead rat with this container will let the decaying animal nourish a garden.
The rat trap design has some problems, however. No self-respecting rat would be contained by cardboard. Rats have very sharp teeth in order to escape from such confinement. Poison generally causes a slow, painful death -- it’s not eco-friendly. Making and using a cardboard trap is wasteful. It would be better to let a cat do the work.