There is an ad on the Xbox dashboard for Verizon called "Visit The Fasterpiece Theatre" it has a free avatar prop for a Verizon 4G LTE right now (looks like there will be a total of 5 avatar items), You need to watch a video in the "Fasterpiece Theatre" first to be able to unlock the prop, after that click on "The Velocity shop" and scroll to the left for the prop.
Thanks go out to liljrSanchez for telling me about this.
Link for the first prop: CLICK HERE
(this link will not unlock the prop you need to find the ad on the Xbox dashboard to unlock the avatar item)