How do I beat "Mr. T is hanging around"?

Solution 1:

Spoilers, but that goes without saying on a question like this.

Place a pin on one side of the T and hang a large weight off of it. Click on the ball to kick it right.

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The elegant/old-school solution can be had by a single thing that locks over the top of the T and has an extension that will smack the ball when it falls and lifts the gate. It's a pain in the ass, only did it once and didn't SS it :(