Customs online - Homepage
Is english site of German Customs....
In fact, if you just visiting ( i.e. not taking up residence in Germany ), you can reclaim all VAT ( currently 19% on non basic items ) on items purchased here when returning with them to Brazil.
Heed cllmda's advice, please. Going with courier you pay an arm and a leg in service charges. Registered airmail..well, Chinese write two-bucks-something on the customs declaration, regardless whether you've ordered a single paperclip or a disassembled aircraft carrier

. With about 50000 parcels flooding through the airmail hubs every day, odds are in your favour that they won't bother you, as the administrative hassle of collecting a few euros is higher than the actual revenue rake...