As you can see, just about anything tube shaped will work. If you don't have access to shot bags, then jean legs would be a good choice. Also, if weight is an issue you can use rice instead of sand. Another alternative fill is bird seed. Both the rice and bird seed are very light but still work well. (just avoid getting them wet). You really don't need those costly leather bags and rests like the lead sled or others. Abotu 5 or 6 bags will do just fine.