Broken or misplaced 1/72 scale tank tracks? Me too! I was missing track for a German SdKfz half-track armored fighting vehicle and decided to construct my own.
First, I made a track template from cardboard and used it to cut some metal window screening, 1.

I then cleaned the screen with isopropyl alcohol before priming it with black paint.

Starting at the top of wheel section, I super glued down the track, using a pair of tweezers to mold it to the wheels in a realistic way. I overlapped the ends slightly, 2.

Once the glue was dry, I made a mixture of plaster of paris, tacky glue, and brown acrylic paint. Once the consistency was like mud, I took a brush and stick and began to apply the brown mixture. I thickly coated the under carriage, tracks, and wheels, 3.

Once it had set, I came back with a dark brown wash and touched up the muddy areas. You don’t want to rush putting on the mud — make sure it is dry before doing touch-ups or adding washes.  

I added decals and figures to the AFV, then finished it with a few washes and a bit of dry-brushing, 4.

Tip submitted by:
Robert Bailey
Fort Collins, Colo.