I have a 10 year old JD LT-155. I like the fact that I can put the needed garden tools in the trailer and take every thing to the area of the yard where the project is located. At the conclusion of the project every thing goes back into the trailer and I can take it all back to the shed.

However there is the time when you have small things you want to take with you. I am thinking of some small box or rack on the back of the tractor that would not interfere with the the trailer.

The thing I see using it for is may be an axe, hatchet, Loppers, or similar tool. Also I carry the little orange builder flags. (When I see a fire ant mound, I stick one of the flags in and come back later and poison it.)

It should be securely attached to the tractor. It would not be so big that I could not get it into shed, and be easily removed if necessary. It should be enclosed or have a way of securing things so they do not get lost as I mow.
Does any one have experience in building something like this.