What do you think of mismatched bikini tops and bottoms? Fashion disaster or cool pattern mixing?

I need to get new bottoms for my bikini top (#1) as my current bottoms are too small. It is >5 years old (I don't go swimming much..) so there's almost no chance I'd be able to find the matching bottom. I still love the top, it fits well and is underwired but doesn't look like a bra. Plus replacing a bikini bottom is relatively cheap, whereas the types of bikini tops I like (underwired, bra-sized) tend to be expensive.

Some possibilities - keep in mind that I chose these more for color/pattern and I'm not wedded to the shapes necessarily although I do need substantial back coverage for decency. I like side-ties too as they are nice and adjustable for big booty/small front.
The safe/obvious choice would be plain black. (#2, and obviously many other options)
Something in b/w colorblock to echo the color scheme of the top? (#3 and 4, I love #3 but I think it's too skimpy for me)
A different color solid (#5)
Pattern mixing in b/w with stripes/dots (#6-7)
Pattern mixing with a different b/w floral (#8)
Serious pattern mixing (9-11)

ETA: Here is a mismatched set that is sold as such. (photo 12)

http://www.neimanmarcus.com/p/.....143240016/

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