Unicef

There's nothing better than knowing that your purchases are helping a cause. Last year, we didn't think things could get any better than H&M's All For Children collection, but that's because we hadn't seen this year's designs. On Oct. 18, the Swedish retailer will introduce its 2012 All For Children collection to benefit UNICEF at 300 stores worldwide.

While the collection includes dressed-up designs like a pink bow-detail dress, a fake-fur necktie coat, and printed tops for girls, as well as blazers and colorblocked sweaters for boys, it's the costumes and fantasy pieces that we're drooling over now. Wizard hats, magic wands, rabbit ears (and scarves), and flamingo heads are the perfect Halloween accessories for kids who don't want to go the commercial route this year. And the wall stickers and playbook just add to the fun.

As it did last year, H&M will donate 25 percent of the sale of each garment to UNICEF's work in Bangladesh to promote education and improve children's health in the slum areas around Dhaka, including those that help make the discount department store's clothes.

To help kick off the collection, H&M will host celebratory events in New York and Chicago on Oct. 18 and in Los Angeles on Oct. 20, with food, music, face painting, and the opportunity for kids to create their own iconic UNICEF Trick or Treat boxes.

Keep reading for a sneak peek at the collection, and visit H&M's site for more details about the initiative.

Prince William and Kate Middleton visited a UNICEF food bank in Copenhagen today, with Denmark's Crown Princess Mary and Crown Prince Frederik of Denmark. The UNICEF center distributes emergency food and medical supplies to East Africa, a place close to the Duke and Duchess as they became engaged in Kenya. The four royals, including Kate's counterpart of sorts, Princess Mary, who will one day be queen of Denmark, were greeted with flowers by young girls and offered to taste the vitamin paste that the center distributes in emergencies. They also watched this video about the crisis.

Clarence House, the private office for Prince Charles, Prince Harry, and Prince William and Kate Middleton, uploaded photos from the event on its Twitter account and quoted Kate as saying, "We hope this will put the light back on this crisis." Right now, 13 million people are impacted from the famine crisis and 320,000 malnourished children are at risk of dying. See photos from their visit to UNICEF center, which is trying to do something about it, now.

Get ready to squeeze into your kids' clothes — all for a good cause! Next month H&M will introduce a collection of tot-sized pieces that will benefit UNICEF's All For Children initiative. The contemporary collection of pieces for babies through kids wear size 8, takes its cues from classic children's styles, including boys and girls pieces in Fall's muted nude, mole, and coral tones. The on-trend designs will not only appeal to tots, but to their mamas too.

From sailor-striped tops to retro-inspired sweaters and dresses, the collection is based on an original children's book illustrated just for H&M. Moritz! is a text-less picture book featuring a lamb, a mouse, and a kitten in various situations. The characters' clothes and the book itself are all included in the All For Children collection.

Twenty-five percent of the sale of each garment will go directly to the charitable program that benefits families in the world's poorest communities, including those that help make the discount department store's clothes. Keep reading for a sneak peek at the collection, and visit H&M's site for more details about the initiative.