Corian is easy to turn and finish, just keep your tools sharp and take your time.
The biggest challenge with corian is the fact that 99% of it only comes in 1/2" thickness.
That means you need to laminate your blanks.! ( Use 2 part Epoxy, not CA )
Depending on how well you do this, the seams can look from horrible to invisible.
Even though Corian feels quite rigid, it actually flexes a fair amount.
To make the seams disappear, use as many clamps as you can, you can't overdo it !!!
....And make sure you start clamping in the CENTER and place the rest of the clamps progressively toward the edges.
Corian can make some very striking Pens.!
Find the shops in your area that do the actual cutting for the Kitchen and Bath installers in your area.
Most of them will let you have the scrap cutoffs for free or just a few pennies a pound.
There is some very attractive corian amongst the new countertop and bath fixture designers.
ADK