Walmart offers the Educational Insights Now You See It, Now You Don't See-Through Compost Container, model no. 5095, for $25. (Amazon charges the same for Prime members.) Opt for in-store pickup to avoid the $4.97 shipping charge. That's tied with our mention from a week ago and the lowest price we could find by $2. It measures 12" x 4" x 8" and features three separate aerated compartments, magnification spots, three thermometers, and faux grass top.