I try to avoid drilling or nailing anything into my TT when possible, so I took an hour or so to rig a flag holder in preparation for Independence Day. Nothing great, but thought I'd share it anyway.
You'll need: 2' PVC Pipe, marking pen, drill, 2.5" bolt with nut, black paint (optional), weather strip or similar, dremel with plastic cutting blade and sanding tip, two strips velcro, glue.
2' PVC picked up at hardware store for $2.45
1.5" internal diameter, but you'll want to make sure you can fit your flag staff and leave room for the ladder rung
Place the bottom of the PVC pipe on the second to highest lader rung. Take a marking pen (in this case my daughter handed me some nail polish she was playing with) and mark the bottom and top of the highest rung, about half way up the pipe.
Used the dremel to cut out the section of pipe between the marks. You can see the nail polish. Nothing in this project has to be perfect.
Don't cut more than a third or the way through the pipe.
Drill a hole about half way between the cut and the bottom of the pipe. The hole should be slightly bigger than the bolt you are using.
Drill through the opposite side of the hole. Don't worry if you're not on center.
Insert nut and bolt.
Paint to match if you want. I used black head paint from my fishing box.