A while back I posted a quick and dirty tutorial for tentacles, and well I didn't need tentacles at the time and it was to say the least basic if not crap so here is the real deal so to speak.
Materials
Perspex sheet
I used 1 @ 6x7 cm.1 @ 5x7 cm. 1 @ 2x7cm.
Data cable the multi core strip stuff at whatever size you can get.
A Hot glue gun.(I'm into hot glue at the moment! )
Cut & clean your Perspex to size and cut down the data cable to the right size strips
[IMG]http://i1104.photobucket.com/albums/h323/commsnake/04aefdc9.jpg[/IMG]
Make a 90 degree angle with your larger base plate and thin strips of perpex
[IMG]http://i1104.photobucket.com/albums/h323/commsnake/3ff78a62.jpg[/IMG]
Glue your strips of cable to the base plate smoothing and cleaning any excess glue off
[IMG]http://i1104.photobucket.com/albums/h323/commsnake/5311d1cf.jpg[/IMG]
Repeat for the top plate making sure both plates and cables align. Then trim off any excess cable
[IMG]http://i1104.photobucket.com/albums/h323/commsnake/e2ba55ea.jpg[/IMG]
Roll a sausage of greenstuff (stunt plastercine used in this move!)
[IMG]http://i1104.photobucket.com/albums/h323/commsnake/fa270d60.jpg[/IMG]
Roll the two plates together using the side as a roller guide and you should get something like this
[IMG]http://i1104.photobucket.com/albums/h323/commsnake/75f5e103.jpg[/IMG]
I'll try and get a better picture up ASAP but I hope you can see how clear the ridging is.
Next cable to be used
[IMG]http://i1104.photobucket.com/albums/h323/commsnake/f9e53edb.jpg[/IMG]
I see tentacles in this guys future....
[IMG]http://i1104.photobucket.com/albums/h323/commsnake/0a9ed341.jpg[/IMG]