Thor's Hammer?

From POPSCI - Trapping Lightning in a block of acrylic.

There are many unusual things to see around Newton Falls, Ohio—the Wal-Mart with hitching posts for Amish buggies, the Army base with helicopters and tanks proudly arranged on hills—but I was here for the most unusual thing of all: the local Dynamitron. I was here to make frozen lightning.

Click over to POPSCI for the full story and a video. Cool stuff.

[Found on Proof]