In an attempt to shield the new planted trees I took two nursery pots and cut out the bottoms to form a plastic sheath that will fit gently around the trees. Then I speared dried willow branches into the ground on the insides of the pots to hold the pots in place. The crape myrtles will grow up and through the holes while they remain hidden for now from the rabbits.
Will it work? Hopefully but there is a good chance the rabbits will manage to find them. The only thing I've found that keeps rabbits out 100% is a wrap made several feet high (2-3) made from plastic or metal mesh. If I can manage to get the first 3 trunks of the crape myrtle above rabbit height then they are welcome to nibble on the suckers. Then they'll be doing me a favor!
After 3 days in the ground both Crape Myrtles are untouched!