(Image credit: Lululemon / edited by Gemini) Mother's Day is this Sunday, May 10 — and if you're stumped on what to buy for Mom this year, we've got the perfect gift idea for you. Lululemon is hosting a huge Mother's Day event with a wide variety of stylish apparel and accessories to shop. From trendy workout tops and belt bags to colorful claw clips and water bottles, Lululemon has plenty of gifts to show Mom just how much she truly means to you. The best part? You don't have to spend a fortune. Below, I've narrowed down all the best Lululemon Mother's Day gifts under $50 . Follow Tom's Guide on Google News and add us as a preferred source to get our up-to-date news, analysis, and reviews in your feeds. Get instant access to breaking news, the hottest reviews, great deals and helpful tips. Olivia is a Deals Writer at Tom’s Guide. She loves all things lifestyle, shopping, and sourcing the best deals from some of the top brands, retailers, and websites around.…