I believe MouseGears in ECPOT also has the parts/body.
I do this allmost every trip...
Got over 60 parts in one time, not all small, some shoes,hats, etc. I pre-fit the smaller pieces into the hallows of the larger parts and then place the big parts together a few ways to see if there is space I can cram more stuff into/around...
I think the last box was over 5 pounds... the CM was amazed. It is a lot of fun.
Do remember that if you at a MPHP( Mr.Potatoe Head Packer...), that not ALL the others that are packing boxes want your help
. Some strange folks are happy just getting a body and a few parts... One family from England was trying to get in a body, MM arms, feet and a hat. When I showed them that it would all fit into the body and they would have a ton of room for more stuff the declined to stuff the box, saying they did not want the other stuff... I was SHOCKED! ( this is said in fun, folks, ok,I was really a little shocked, but it wasn't any of my bussiness!) I did suggest that if they had younger family members back in the UK that it would make a great treat for them and to at least get a few sets of MM arms... But they declined.
Sigh, they did eye me a little strangely... so I let them do it there way, even if it did pain me to do so.