Good luck with your restart. I don't spice the shakes up as I prefer them to be bland to keep my mind away from 'food' as it were, and I mostly have chocolate shakes only. Plenty on here do though, crushed ice being a very popular option it seems.
I seen a lipotrim recipe book somewhere, i think its on the general thread under where the list of subforums are. I'm not gonna experiment yet as i need a break from food of any type to keep my mind in the right place but have a look at it, its very interesting with lots of ideas. Good luck with your summer time goal