So I decided to try making my own and if I may say so myself, they seem to be working very nicely.
Here is my first How To:
I have made my labels out of an old milk bottle but you could use any of a similar type of plastic.
I cut into the bottle to remove the top and bottom, leaving a ring of plastic which was cut down one corner and opened up.
From this ring I cut out the individual tags but cutting it into strips vertically. Then cutting one end to a point.
The lines drawn on the plastic are to show you how it was cut but i normally don't bother when cutting it myself.
After these were cut out I wrote the names of the seedlings I have onto the 'inside' of the plastic, because I didn't manage to remove all of the label on this bottle. Also the inside it generally smoother as a lot of companies make the outside textured.
Finished labels waiting to go into my pots :D
I hope you enjoy using this method, as it is much cheaper and environmentally friendly.