Rather than buying them on the stores (which are usually from wood), you can now make it yourself. Most of these things are not something used over and over, storing wood will just take up space.
You can use this for a bonding time with your younger siblings, cousins, nephews, or nieces (you yourself have a choice of doing this with them or the actual sewing if you can stay out of harm's way in front of the actual needles), gifts for those younger ones, and even wall arts!
|Image from http://www.minieco.co.uk/printable-sewing-cards/|
Colored cards (or you can color the printed white card)
Button or bead (though you can skip this and just tie the ends together)
Adding on to my rant on how I never thought of this, now that I see it made, I am getting inspired, so maybe you will see the randomest, weirdest creations that are sewing cards related :p
Don't forget to check out Minieco's tutorials for things like you very own DIY invisible ink, magic potions, and cardboard bells that would look really cool as a home decoration.
Aaalsooooo, look at this boredom busters and get inspired ;)