The Rainbow Hair for Foster Care campaign run by the Brophy Family and Youth Services featured a free barbecue and a rainbow hair salon where volunteers sprayed, plaited, extended and styled hair, while providing information on the cause.

"We're trying to show appreciation to our carers, we are indebted to them and the dedication they have put in. We also want to challenge and invite those who may be interested to come along and see what it's all about." Mr Broekman said.

Also available for free at Warrnambool businesses Toyworld, Kulcha Shift, Price Attack and Figsellers Cafe are packs of coloured hair extensions with attached information on foster care.

"This is our first year running the program, we're hoping it is something that will grow and draw attention to the need for carers. The harsh reality is that there are many more children in need of foster care than there are adults to provide it," said organiser Ian Cairns.

Victoria has an overall shortfall of 1000 foster carers driving a statewide campaign for recruitment. Anyone over the age of 21 can apply to become a carer, whether they are single, de facto or married, if they have the means to provide a secure and comforting home for a child.

Brophy Family and Youth Services will hold a foster carer information session for those who are interested in joining the program on Wednesday.