lost property

help,
having just unpacked our our car after a great weekend ive descovered that my 7 year olds purple grovygirl rucksack was missing. i now remember hanging it up in the portaloos on sunday night which were in the family camping area.
inside were 2 sets of (unsure off what the real name is) ribbon things that are pink + yellow on a black cord that you spin around. these were brought from a tent in the arena (after a long discussion about the price of them) both my daughters are very upset they loved them and they kept them entertained for ages .
i know its a long shot but im hoping some found them.
was there a lost property tent?