Up until now I've added the following to the swag bag:

@PantiesforBitcoin and boxers and gift cards.

Aloe for Bitcoin.

@seedor_io stamps

@dergigi 21 lessons book in English or Greek.

@LaserEyesCards collectible boltcards

@btcdiaries21 merch which is cute AF.

@GoBrrr_me 3point125 halving glasses.

And I'm not sure I can stop now!