Creative, simple solution for a high-tech, expensive problem

Fermilab was the world's largest machine and highest energy collider for a couple decades, and it is just about an hour from ETHS. When it was built in the late 1960s to early 1970s, a major problem turned out to be cleaning small metal slivers from inside the electromagnets used to steer protons and antiprotons around the 4-mile ring. The solution to clean out the tubes inside the magnets?

Felicia the ferret!! See pictures and the article about this brilliant, simple and creative solution to a problem on some expensive high-tech equipment! I personally love simple solutions to problems of any kind! Thanks to graduate Isabella Green for finding and sending this.