I've a got a lovely one (well I think it is lovely)- would suit boy or girl.
IT needs a clean - what high chair doesn't (??), and the material has faded a little in the sun
The material colours is pale fawn/ beige background, with yellow/ red circled - far nicer than it sounds!
It has an insert for a tiny babe, which you can then remove when they grow - it lasts them for a decent long time.
It was £150 approx new, but £20 would be fine as we have had our use from it now, but it is too good to throw out!
Let me know if you are still looking