Here are some table numbers I recently finished for a rehearsal dinner.
The paper used is a fold over 4 x 9" tent card in Iris Blue Stardream. They were ordered from Envelopper Inc. if you wanted to buy some for yourself!
As you can see in the picture below, they stand up on their own. I wrote the number on both sides so that it could be seen from almost all views of the tables.
I will say, writing these numbers took a lot longer than I thought it would. I might need to look into buying a different nib with much thicker strokes. I basically just went in and made the downstrokes about 3 times thicker. I think they turned out well! Hopefully they guided people to their correct table! :)