A shell scheme stand is exactly that: a shell. Traditionally, it will be constructed from battens and plywood walls but could be a simple panel and pole system. What you end up with is a 'unit' of three walls (or two walls if you book a corner) and a bit of carpet. Unfortunately it will look just the same as everyone else's.

ADVICE:
Visitors tend to walk quickly through the front part of a venue then slow down as they near the centre sections of the exhibition. So a stand near the entrance may not be the ideal position. The best sites are corners and those facing the end of an aisle