I didn't put this one up on the 'folkinfo' site because it had a named writer and we wanted to minimise copyright issues. I do have a copy of it, though, and the lyrics are as follows:

RED SOMBRERO
(Peter Hutchings)

I wear a red sombrero,
It is a big sombrero.
I only wear it
Because the sunshine
Gets in my eyes and I cannot see at all.

I have a little donkey,
He is a happy donkey.
He always takes me
Into the market
When I go shopping
To buy some food and wine.

I have a stripey blanket,
It is a coloured blanket.
It keeps me nice and
Warm in the night time
When I am sleeping
Under the silver moon.

I wear a red sombrero,
It is a big sombrero.
I only wear it
Because the sunshine
Gets in my eyes and I cannot see at all.
My sombrero is the biggest hat in the world.

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Line breaks are as printed. If I get round to it, I'll add the ABC at the weekend.