Very narrow side table! Help!

[HolidayHelpPlease]

Hi all
Does anyone know where I can buy a side table that’s 18cm Wide? It’s to go down the side of a sofa and I can find nothing! Budget is ideally under £150 but can stretch a little bit, it’s driving me crazy not being able to put drinks down when sat on one side!
Length and height are ideally 60cm but I can make do with those, and ideally white but again can DIY that - Current plan is to buy a table and cut it in half!
Thanks

Could something like this work?
slinkysofatables.co.uk/

Or this:
Etsy Table

What about a plant Stand? We found one years ago in a junk shop and use that for one end of our sofa. Some of them can look really lovely.