Here are some more sexy summer tops. These are all Knitting patterns, but I'll have some crochet patterns coming soon.
The Girl From Auntie has a really cute Summer Funnel Sleevless Top.
ChicKnits has two very cute sleeveless tops: Bonnie Marie's UCan2 Shell and Boatneck Shell. ChicKami isn't free but it is well worth the 4.95 as far as I'm concerned.
Lionbrand Microspun Drop Stitch Knitted Tank Top is very sexy. I love the way that the microspun feels. It is so light and airy.
Keep an eye out for more patterns...