When I was making the Jailhouse I ended up with offcuts from the lollipop sticks I used, so I decided to turn them into picket fences. Simple stuff… I cut two lengths of balsa to secure the lollipop ends to, fixed that to some thick card (using another lillipop stick as a brace) and then used PVA glue to cover the base in sand. I cut the ends of the bases at 45 degree angles and let the fence overhang the ends slightly. That way they can form 90 degree corners.
I think they turned out pretty well.