Pushrod
Master Blaster
a plastic sled works well
This!
https://smile.amazon.com/d/Fishing-Gear-Equipment/Shappell-54-JET-SLED-MULTI-PURPOSE-SLED/B002RWBPQM/ref=sr_1_1?ie=UTF8&qid=1545827902&sr=8-1&keywords=plastic+game+sled
That is what I use here in the mountains of WV. It works very well even when there is no snow. Going down hill in the snow is tricky.