Play Pen - my daughter is almost 6 months old now and i got tired of the dog coming inside and getting on her blankets, playing with her toys, other kids (and husband) tracking dirt in, but all the play pens i found were expensive and small. So i made my own, out of pvc pipe and lattice. It took 1 day (actually only about and hour or two but i kept getting distracted, lol.) And only cost $60! The lattice was the most expensive at $13 a sheet and i had to buy 3.