I like the cookie (or martini) tray in your hands. Offer firmly. " Have a delicious cookie (martini). I INSIST"
My other old standby is the marshmallows. One under your big toe, one glued to your shin. Squish 'em.
When you have someone nervous about pitch, show them the pitch ACROSS the hill is actually quite tame. On a WIDE easy pitch, have them practice "steering the bus" across the hill. A little up to slow down. A little down to speed up. To stop? Keep crushing the marshmallow until you head back up the hill to slow down. DONT CHICKEN OUT AND RELEASE THE MARSHMALLOW!! Let up on the marshmallow to let the ski fall back down the hill to speed up. Remember -Too fast? Too Slow? REVERSE your turn.
I like the "up the hill drill." Pick a post downhill of the group maybe 50 m or so. Have the students ski down to then around you and then keep squishing the marshmallow untill they head back up the hill. DONT LET UP. Have a contest to see who can go the farthest back UP the hill. Soon they are setting a great downhill edge and generating all kinds of edge pressure. Do this both ways. This gets them used to feeling the ski carving AND gives them confidence to stop when the need to just by hanging tough and steering the ski across and eventually back UP the hill.
I like to tell students to "keep their cool" if they get in the back seat. If you get thrown back, dont "roll down the windows" - (you know what I mean) - Rather, JUMP IN THE POOL. Get forward and back in the drivers seat. What is Fonzi like? Ans: Cool. Correctamundo!
Finally, for more advanced students, try the "touch the hill drill." No poles. You need a little steeper pitch. Have the aspiring carvers make 20 m -ish turns and try to "touch the hill" with the uphill hand. This gets them laying the skis over and reaching forward. For kids - the focus on touching the hill keeps them from thinking about the speed, opens their stance, unconsciously creates a long leg short leg, and generates bigger angles as they get after it!