You could do a goby or damsel with inverts. One or two small fish is going to be your max without having severe nitrate problems and territorial disputes etc.
Sexy shrimp are cool along with pom pom crabs and some larger inverts such as peppermint shrimp and other docile inverts. Add a small goby and some corals and youd have a pretty interesting 10g in my opinion.
As for lighting i recommend a led
par 38 bulb perhaps. They use standard light sockets and will be absolutely plenty of light for around a 100 i believe. If your looking for less light the a 2 bulb t5 on ebay will do the trick too. Depends what you want to keep coral wise.
29g Mixed Reef, 150w 14k Phoenix MH w/ Moonlights, Reef Octopus BH1000 HOB Skimmer, Ecotech Vortech MP10es, ReefKeeper Lite (Plus), PH Probe, Temp Probe, ATO, Carbon/GFO Reactor.