I think either way is fine. I bought my bridemaids handmade pearl earrings that were all a bit different and I customized them to match their outfits. That way they all had pearl drop earrings, but they were not PERFECTLY matching. Surprisingly, doing this was not that expensive! Only $30 per maid. Then I got them comfortable flip flops that matched their dresses to wear when things got crazy at the reception. I glued swarovski crystals on them myself, to give them a bit of a more formal touch. In my opinion, it's all about putting effort into gifts and making them feel special; knowing that you are truly thankful for their support.