I found this device,
http://lockedinlust.com/product/the-vice-standard/ which is pricey. I obviously won't be able to purchase it for a while as I need a job. But, I could work towards it.
The device is 1.4" wide and 2.65" long
I am 1.5" wide and 2.5" long when flaccid. Do y'all think this device would work?
-little alexis