I'm currently in the process of making a few more Mini trees using the Tomato Cage/Rings you can get from the hardware stores.
For anyone else making these, here's a few more tips.
Chicken wire in 24inch x 25foot rolls. This does not cover the entire tree in one go, so its a two stage process.
Bottom 2/3rds:
Make a trapezoid measuring 41" along the bottom of the chicken wire and 21" along the top. Make a centerline on the chickenwire and make the trapezoid equidistant. better yet, make a hardboard template.
I just make a small bend in the wire top and bottom to make the centerline, measure 20.5" each way along the bottom, and 10.5" each way along the top to get your trapezoid.
Make sure you have a way to locate that centerline later, majic marker, bend in the wire.
Using this trapezoid pattern you will consume 258.5 inches of the 300 inch roll leaving about 42" by 24" left over as well the two wedges left over from the trapezoid pattern after you square off the roll.
Those become the top covering.
Top;
The chicken wire I bought has a center guide wire through the middle of the roll, if yours does not have that, just eyeball it at 12" and snip the remaining 42" lengthwise in half.
If you want, make a second trapezoid template using 20" along the bottom and bring it to a point along the top, use the centerline, marker or bend again. This will produce 6 wedges for the tops.
The remaining wedge scraps from the bottom traps will give you the remaining 2 wedges needed for the top.
Applying the bottom wedges;
Using the centerline you created on the trapezoid, hook it over one of the 3 straight wires on the frame, keep the centerline of the chickenwire along that frame wire. Join the ends of the chickenwire at the second ring so its snug along that ring, work back down to the base and if done correctly a tail will result that you fold under the base. once thats done, eyeball form the last 5-6 inches from the second ring upwards keeping the conical shape, dont be tempted to just snug the chicken wire to the 3 wireframes at this point or you'll get a floppy witch/wizards hat look to it.
The top few inches may not even make contact with the frame wires at this point. wo worries.
Now use the top wedge and using the centerline again, hook the top over one of the tree frame wires and work back to the top ring, you'll not quite reach it but close enough to begin forming the bottom of that wedge into a ring, knit the rest upwards keeping a conical shape and overlaping the edge of top section lapelle style to conplete the cone.
Press outward from inside to shape the tree if any dents occured.
Apply lights..
8 mini-trees, 1 roll of chickenwire, 30 minutes..