Ropes, twists and plugs are basically uncut flakes. Get an inexpensive cigar cutter and you'll be able to create your own flakes/coins from them. As for stronger flakes, ropes, twists and plugs, here are a few good ones containing some umbladee:
Bayou Morning Flake (perique in abundance)
Brown (Happy) Bogie
Black XX twist
Sweet Rum Twist
Jack[sic]Knife Plug (hint for GL Pease -- there's no space in the word "jackknife")
Somewhat less potent, but decent Vitamin N are Full Virginia Flake, Scotch Flake Aromatic and Erinmore Flake.