Yep this is the only way but.... you may not be insured via Paypal or the postal service by doing this so if your item did go missing you would be more out of pocket than paying the original custom fee.Only if the item is declared for a really low value or marked as a gift.
ooh i had a real mess with this.
I lived in Vienna part time/US part time and I had a bag sent to me that the seller marked as $100/ gift/ Used bag - I paid no customs fees.
The second time I had a bag marked $500/ gift/ used bag, I was charged 100 EUROS for customs (with today's exchange rate roughly $135)
Another time I had a bag shiped at $180/used bag/ fit, and was charged 35 euros- also held at customs office for over a month. I have no idea how these customs office figure out how to charge for customs, but in the end, unless it's a really amazing bag I don't think it's worth it...
everytime i read abuot customs i'm so happy that in australia they increased the value to $1000 aud it used to be $250 and i always had to ask sellers b4 hand if they can under declare the item
when i send parcels to europe, canada or most places in asia i will undervalue the item when told. i always ship registered or ems.