Does anyone know where I can borrow or hire one or max two folding / trestle tables from? I am organising a picnic in the park for my son's first birthday and there will be too many little people running around to consider just having the food on picnic mats where they can stomp all over it!!

We are hoping to use one of the picnic tables in the park, but want a back up plan in case they are all taken. 

Thank you!!