Market stands

you cant. that feature isn't implemented yet

You can't, but you can try pressing 'Q' to try and place an item there, though it'll eventually despawn. Red mentioned he had some plans to make items displayable so it may be something to look forward to in the future. Similar with displaying food & items on plates & etc. The more updates we get through the more likely such may be.

For the moment, maybe you could use a poster with some pictured of veggies.

You can try this alternative.

Great idea, very nice @Deirdre

Thanks.