Engine/trans leak catcher

[D-Day]

So, my engine in my 1973 crew cab drips a little once in a while...slowly...you all know how it goes. Even my transmission does too, which it shouldn't, since it's a newly rebuilt 700R4 less than a year old. Guess that's what happens when they rebuild an already dirty transmission.

Since my truck is a bit old, it wouldn't be looked kindly up at my friend's gated apartment place in St. Louis. No vehicles with antennas (CB, ham, etc.), and no mechanical work in their lot. I understand that. I also don't want to leak, because just parking there I know I'm gonna catch a lot of dirty looks.

Anyway, since seals cost too much time and money, and might not fix the problem, I thought of a leak catcher...something to soak the small drips of oil and trans fluid that occasionally fall. Wondered if anyone here had some ideas or inspiration...what material to use, where to mount, flammable precautions, etc.

Can't be that hard...