Relentless vandalism at Carterton Playcentre has led parents to organise a fundraising stall at the town's weekly Farmers' Market.
After an attempted break-in last month and continuing problems with vandalism, parents decided the centre needed a security system.
The proceeds of this Sunday's produce and gardening stall will go towards installing security cameras.
Playcentre parent and stall organiser Charlotte Williams said it was a shame the centre was being forced to fundraise for a security system.
"We've decided that it was a good idea to protect our resources and install security systems and it's not cheap. It's really sad because instead of being able to spend the money to buy things for the kids to play with, we are spending it on protecting ourselves."