Help a London Child, set up by radio station Capital FM, is aiming to raise £15,000 by asking diners at restaurant chain Gourmet Burger Kitchen to make a £1 donation in exchange for a free main meal when another main meal is purchased. The campaign, backed by DJ Johnny Vaughan, runs until 8 February.
Charities are being asked to urge supporters to raise funds by completing a 100km moonlit cycle ride through London. The event, Nightrider, will take place on 19 June and there are places for 300. Organisers of the event hope participants will raise more then £25,000.
Skin disease research charity the British Skin Foundation has launched a campaign asking families to raise money by swimming at their local pools. The charity's Big Swim Challenge has the number 10 as its theme, so members of the public can raise funds by, say, swimming in groups of 10 or doing 10 lengths.
The Sailors' Society is asking people to wear woolly hats to work between 7 and 13 February in support of its annual Woolly Hat Week. The money raised will go towards transporting and distributing woolly hats to seafarers.