Go ghetto! Here's my poor boy cpf. Works great.
But, now, here is something that has irking my for a while:
When filling bottles, whether it be with a cpf or standard wand filler, piece of tube or whatever. You have to fill it to the rim in order to have the proper head space in the bottle when you remove the tubing/pipe. Why then should we bother purging the bottle with co2 first? The liquid level will push all the co2 out, and suck in air when you remove the filler. Just a thought.