source for large pillows with washable cases?

[kangamitroo]

i almost always sit on the floor, and dd seems to eye the dog's blanket as a more comfy seat than our hardwood. i'd love to get some throw pillows good for sitting on, but ones i have seen canot be washed easily.

anyone know where to find them (not too pricey) with removeable covers? can't sew to make them myself.