Playhouse for cats

I bought a 'Colour-in play house' kit from a little artshop in Birchwood a while ago. (Down to £5 originally from £7...bargain!!) Work people took the p*ss saying something like.. 'Minny, you don't HAVE TO buy it only becuz it's £5!' 'Minny, can you see the picture on the box a LITTLE KID colouring??' etc etc... BUT I only bought it so i can give my cats a little house (big mansion for them)... I've been working on this building project for a week now but it is no where near finished.. :'( It is quite reassuring that my cats are already showing interest though...If they don't stay in the house after all the effor I've made, I will just have to lock them in!