The only thing you need is a mix of shredded paper and tissue paper cut into thin strips. You want about the same amount of each.
Place your seeds on a piece of cardboard to help pull out the excess water. Add a little teaspoon of seeds on top. These will dry and stick to the biodegradable 'starters.'
Bag these up, and when you are ready, just toss these into a pot filled halfway with potting soil, cover it with more soil, and water. The paper and tissue should dissolve, and the seeds should grow. 'Should' is sort of the 'key' to this whole scenario....it takes, like, water and sunshine and other stuff, and I usually forget two out of two of those things around my house....which is exactly why all my seed starters will find new homes. It's best for all parties involved. But really, this is so much better than handing over a packet of seeds to a three year old....or a 32 year old and asking them to aim for a dark indention in the dirt. Even I could probably get this little heart shaped starter tossed in the general vacinity of the garden. Assuming one had a 'garden'....and by garden, I do count the dandelions and clovers that grow where there used to be grass around my yard.