Once I saw in a magazine from Playgroup a set of sticks and connectors you could use to build frames to then cover with sheets etc to make your own play tents, cubbies etc. The sort you build for a day and take down can be used inside and out - the sort of thing I do currently with clothes airers (coming to the limit of different structures can make with the airers) - but I have never been able to see anywhere again - I have tried google but seems am not putting in right words as just get more permanent cubby structures etc - does anyone know what I am talking about or seen them anywhere? (I tried the Chalk and Total Toys websites which I think were where the magazines came from to know avail)