Exploring In-House Physical Gifting Strategies for Meetings

Has anyone successfully used an in-house physical gifting strategy for generating meetings with net new target accounts (or closed lost accounts) without getting one of the gifting providers involved (Sendoso, Reachdesk, etc). Seems like the biggest roadblocks would be A) getting physical addresses to deliver packages to B) actually shipping/mailing any packages On the other hand, has anyone used any gifting providers they'd recommend, anything to watch out for, make sure to do/not do?