Joe is spot on - open clusters are your friend in light polluted skies, and the areas around Carina/Vela/Centaurus/Crux is choc-full of them. I've never seen a football in NGC 3532 either, but it's also called the wishing well cluster, which seems a little more appropriate. Others in the vicinity include:
IC 2391 omicron velorum cluster
NGC 3324 gabriela mistral cluster/nebula
NGC 3293 gem cluster
NGC 3766 pearl cluster
IC 2944 lambda centauri cluster (middle of the running chicken nebula)
If you can get a list of carbon stars, they can be good viewing too, although your starhopping skills may need to be pretty honed. There's a good one called DY Crucis near Beta Crucis.
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