To promote the campaign, the charity will take life-sized mascot ponies carrying foam bricks to UK beaches. Last year's summer event raised £150,000.
Horses in Need is run by Brooke every year. According to the charity, thousands of people took part in last year's event, raising funds at work, in schools, at riding clubs and in stables.
The charity helps 500,000 sick and suffering animals each year.
Breast Cancer Care has joined forces with Woman's Weekly and the Eastbourne International Women's Open tennis tournament as part of Strawberry Tea Fortnight, its summer fundraising drive, which runs until 9 July. The charity hopes that the partnerships will help bring in more than £250,000.
The Lady Taverners, a female fundraising arm of the youth sports charity the Lord's Taverners, has linked up with jam manufacturer Tiptree for a fundraising drive that was launched on 21 June.
Tiptree is donating 6,000 special-edition jams that are being sent out to Lady Taverners members so they can fill empty jars with spare change.
Marie Curie Cancer Care has received more than £8,000 raised by home-improvement company Homebase. The partnership exceeded its two-year target of £500,000 in only nine months.