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Look into the itazte MVPs. They have some with graphics and color and I'm sure she can find one she likes. They are a little bigger, but you get used to the size and it will probably last her 2 days before needing to recharge it. It's what I use at work and while driving. Otherwise I use mechanical mods and rebuildable dripping atomizers, but they require tinkering and you'll probably end up having to learn how to do that for her.
If my wife decides to take it up after the baby, I'd set her up with an MVP and either an Aspire Nautilus or Nautilus Mini. Finding a good tank is really the key and the Nautilus is probably the best one out there last time I looked.
Sorry it took awhile to respond. I've been busy moving into a new house and all that entails. This is the first time I've been online since Wednesday of last week m,aybe?