Yorkshire Ann (& other prospective sand dancers) I have been known to do a version of this to 'In the Old Bazaar in Cairo' (both A & B pieces ) Basically you can do it one behind the other in a long line one way then a quick turn and back the other at appropriate times in music and according to size of room/space available. If appropriate this can turn into a Congo type line through the pub or wherever. Do you know what a 'step ball change' is (ask a tap dancer to demonstrate) then do it with a bit of a hop and with the same foot lead all the time. Use same arm as leg. To break it down -eg
step onto right foot then ball of left foot keeping it behind right leg. Keep repeating while moving forward. Turn as required by quick 180 degree jump then use other leg to give the right one a rest. Arms - bend front arm to look like swans neck (good visual image for special needs teaching ) with its head about level with your nose. Back arm straight and slightly behind back with hand turned palm up at right angles.
Variation - stand side by side in line bend knees and open and close them (charleston/black bottom style) whilst holding onto knees with hands. This works equally well with arms crossed or uncrossed.
Add a few changes of direction to this a few solo/duet bits and hey you have the makings of a sand dance. Hope this helps!