Businesses that donate their allocated Christmas card budgets to the charity will receive tailor-made video e-cards of homeless choristers to send to clients.
For £3,000, companies can request a choir of three to sing Jingle Bells. A chamber choir of five will perform We Wish You a Merry Christmas for £15,000. And for £25,000, a full choir of about 15 will sing The 12 Days of Christmas.
Crisis will acknowledge supporters in two double-page adverts in the Financial Times and on the FT.com website.
Tommy's, the baby charity, expects to raise thousands of pounds through sales of a specially designed T-shirt, on sale at high-street retailer New Look. The company has already raised £183,000 for Tommy's over the past 18 months.
Cancer Research UK has enlisted the support of six celebrities, including Scarlett Johansson, to design charms for necklaces. The 25,000 limited-edition charm necklaces will be sold from the website of high-street fashion chain Wallis to raise money for the charity.
The Prince's Trust will hold its 10km and 4km Family Fun Run for 3,000 runners and walkers on 14 October at Legoland Windsor.
The Guide Dogs for the Blind Association hopes to receive at least £25,000 from a sponsored Walk of Sight on 7 September. The walk was organised by insurance broker and independent financial advisers Smart and Cook.