Riff Raff's Vest

White pique vest with rips, "dirt" and bloodstains.  I didn't take the rips and dirt too far because that's something that will look better with wear as it develops more naturally.  I mixed red and brown fabric paint to get a better "blood" color and brushed on make-up for the dirt. Three button holes, only the top is buttoned - seems like this changes throughout the scenes.  White pique vests aren't too hard to find on eBay for around $30, plus McCall's carries a very good formal vest pattern that also comes with a cummerbund and bow tie you can pass along to someone who plays Brad.

Riff Raff's Vest (Research)

Two shots of the vest - buttoned in different holes. It's a common style and the textured fabric is called pique. The Tuxx Man sells them on eBay for about $32, or you can make one using McCall 4321 (you can also use the cummerbund pattern for Brad). I prefer paint or even nail polish to make the blood stains - but anything would work.

The shot on the right (from The Time Warp) also shows his suspenders.