Gifts with Star Power

Palm Beach preppy brand Lilly Pulitzer is celebrating its 50th anniversary with special-edition prints by famous fashionistas like Gwyneth Paltrow. 15% of the proceeds from Paltrow's pink and blue patchwork designs will be donated to the Epidermolysis Bullosa Medical Research Foundation.

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Halter bikini, Lilly Pulitzer, $178; buy online now at lillypulitzer.com.

100% of the profits from this silver-tone charm necklace go to the United Nations Trust Fund to End Violence Against Women (the companion bracelet has already raised over $1 million for the cause). Avon ambassador Reese Witherspoon proudly wears the piece.

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Necklace, $5, Avon; buy online now at avon.com.

Eva Longoria Parker

put her heart on her sleeve-or, at least, her t-shirt-with her design on behalf of the Palomita Education Fund. 100% of the proceeds from the love-themed tee will go to fund Latino education.

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T-shirt, Palomita, $25; available starting May 29th at palomitaclothing.com.

Courteney Cox

and David Arquette dreamed up these delicate butterfly earrings to benefit the Epidermolysis Bullosa Medical Research Foundation. 100% of the proceeds go to finding a cure for the children's skin disease.

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18kt-gold-plated earrings, Satya Jewelry, $38; buy online now at satyajewelry.com.

Cartier's Love Charity bracelet is available in several different colors, signifying the cause it supports. Emmy Rossum serves as a Love Charity ambassador for the pink bracelet, which benefits Susan G. Komen for the Cure. The organization receives $200 for each bracelet purchased.

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Pink silk and 18kt white- and rose-gold bracelet, Cartier; call 1-800-227-8437.

Hilary Duff

partnered with Shopbop.com to design this pink tee with blue stars in recognition Breast Cancer Awareness month. Shopbop has pledged to donate 50 percent of the proceeds to the Breast Cancer Network of Strength. Sophia Bush, Cindy Crawford and Jaime King also designed T-shirts for the cause-see them here.

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Burnout shirt designed by Hilary Duff, Bop Basics, $88; buy online now at shopbop.com.