How best to transfer personal items to llc filing as s-corp?

So I will be starting up an single owner LLC with s-corp tax status.  Whats the best way to transfer a personal item to the llc for resell?   Is it a contribution?  I am trying to keep this as simple as possible. I may sell 80 items a year. I just want to officially move or transfer an item as it sells to the llc with the best tax results.