Lots of special needs classes have been using Bumbo seats for smaller children with relatively low tone. At about $40.00, $50.00 with the tray, they are a good deal and they do a nice job of supporting certain children. They come in six pastel colors and are available on many websites and in local department and children's stores. It is recommended for approximately ages 6-14 months.
Now a company in Texas has created a Bumbo-like seat for larger children with special needs. It is called the Childrite Therapy Chair and is specifically designed to be a Bumbo seat for older special needs children. The seat is 10.5 inches in width, 10 inches in depth and 11.5 inches in height (from the seat bottom to the top of the seat back). The Childrite Therapy Seat sells for $199.00, but there is currently a deal for $50.00 online. Also I saw one online at eBay for $175.00. The higher cost is because of the smaller volume being made and sold as well as the larger size causing a larger amount of material to make it. Additionally it is made in the USA andthe Bumbo is made overseas. It should be noted that the Childrite is make with permission of the Bumbo company.