seed swaps
With a bit of searching, you can find a lot of online groups and communities for swapping and gifting seeds. From the seed swapping groups on Facebook, I've already swapped/given/received the following:
- chives seedings > garlic chive shoots
- marigold seeds
- rocket, broccoli and chilli seedlings > garlic chive shoots
- gazania and cabbage seeds > garlic chives and luffa seeds
- citronella geranium > lilly pilly jam
*edited*
Plus lots more swaps and giveaways. It's already too commonplace to be noteworthy.