A grandmother hopes to raise hundreds of pounds for a children's charity with the help of her three-legged dog and a DIY limb.

But the wooden leg will not be seen on saluki and whippet cross Kati, instead Daphne Greenall has opted to follow the lead of Rolf Harris by harnessing the limb to herself.

Mrs Greenall, 71, of Willingdon Road, Eastbourne, will take part in a sponsored walk along Eastbourne seafront tomorrow sporting a pair of trousers with the extra leg, with Kati in tow.

She said: "We are going to walk for Dial-A-Dream, a charity which makes dreams come true for terminally ill children.

"When we went to dog shows, there were special events for the best on six legs and because Kati didn't have four legs, I decided I would put on my third leg to make up for it."

Kati, who suffers from arthritis, was taken in by the grandmother of two as a puppy.

She was rescued by the PDSA after her owner threw her under a lorry. Her leg had to be amputated.

Dial-A-Dream is a charity close to Mrs Greenall's heart.

Last year she lost her 17-year-old granddaughter Rachael to cancer after a brave fight against the disease.

Before her death, Rachael was taken on a two-week dream trip to Florida, thanks to the London-based charity.

Mrs Greenall said: "She had such a fantastic trip. She went to Disney World and got priority in all the queues. All my daughter had to pay was the cost of her petrol to Gatwick and back."

Rachael, a former Cavendish School pupil, also loved dogs and entered her springer spaniel Skye in dog shows.

Kati and Mrs Greenall, who also owns 12 rabbits, will be starting the walk at around 10am after the Rotary Club fun day on the Western Lawns is opened by Mayor Olive Woodall.

They will stroll down the promenade to the Treasure Island adventure park and back.

Jean Self, a volunteer committee member for Dial-A-Dream, said: "I think it's wonderful. The charity is run entirely on donations and people don't realise how much work goes into it. The family have been fantastic in supporting us."