Flippin' Flip Forms

Before I began my position I observed another music teacher in the area. She is brilliant in many ways and I decided to emulate her teaching as much as possible. Through her encouragement I am using the Orff approach and I decided to redo the music classroom. Thankfully our school has dozens of "flip forms" which are kid-sized plastic risers in bright colors. So, instead of having the students sit in little black chairs along the wall (like the former teacher and current Spanish music teacher) every week, my assistant and I stack up the black chairs and roll out the flip forms. I am very grateful for his help and bring him coffee to show my gratitude.
I have a love/hate relationship with these flip forms. I like the performance mind-set it gives the students. I do not like that some students (about 3 per class) think of the flip forms as trampolines. I like the way they brighten up the room but I do not like moving them! They are a bit heavy until you "flip" them onto the side with wheels. I guess it is a little weight lifting training I won't have to do at the gym.
So in order to make my flip form class run smoothly, I have set in place some strict procedures.
1. I assign the children their spot on the flip forms.
2. They have to sit with their feet against the grey. When we stand up, they have to stay in the same spot.
3. If they jump off, slide their feet around, lay down, etc. they have to sit on a red line on the floor as a warning. 2nd infraction they move to a black chair with immediate supervision by my assistant Monsieur Abdou.
I have come to learn that with children of this age, I have to focus on being very consistent and repetitive. Even now, 4 months after introducing flip forms some students still can't handle them. As we say in French, Dommage! Too bad! Sit down on the red line.
Today, one of my most difficult 1st grade classes was amazing at sitting on the flip forms and keeping their musical instruments (tambourines and finger cymbals) on their knees when we weren't playing. It was very encouraging! Constant repetition does work.
I had another encouraging experience yesterday with a student who had been misbehaving with his finger cymbals (he put sat on them and scraped them on the flip form) I was able to keep him for a couple of minutes after class and I had him practice how to properly play his finger cymbals. He not only performed the 7 part rondo perfectly, he also sat with his feet against the grey and back straight as a rod. I'll wager that next time he comes to music class, I won't have as many issues with him! He left with a proud quiet smile. This is why I do what I do.