Prepare for shipping. Have your team of 57 lawyers create a prefabricated license agreement. If you do not have 57 lawyers, hire or fire as necessary so that you do have 57 lawyers. Then put it inside the box. Users will perceive this as a joke and laugh.
Users love involuntarily binding themselves to legal agreements.
Before shipping, invest in shrink wrap. Shrink wrap the manual. Shrink wrap each and every floppy disk separately. Shrink wrap the registration card. Shrink wrap the card from your grandmother.