The Sailor Moon store in Japan started the celebration of 100,000 visitors at the beginning of this month. Starting February 1st, you will receive a free exclusive clear file with the purchase of 3,000 yen (tax not included) at the store. The artwork features original illustration from Naoko Takeuchi.
The new Sailor Moon store goods will also be released online at the Pretty Guardians Fan Club at a later date. This clear file will be gifted on the site as well (with 3,000 yen purchase). However, this is all limited to within Japan, so you'll need an online proxy service to buy.