Tesla coils are fun, but not everyone dare to build them. This is mainly because to build large Tesla coils you need some knowledge about power electronics and they can be dangerous if you don’t know what you are doing. Anyway if you are looking for smaller scale solutions that would be safe enough, easy to build and wouldn’t require lots of knowledge, then check out this palm sized design introduced by Lucid Science.
It uses few components like single transistor, LED indicator and simple custom made coil. It is powered from standard 9V battery. All parts you need probably you already have, so you can start right away. Despite its small size miniature Tesla coil is capable of lighting fluorescent bulbs and tubes. This guarantees some fun play while building and trying things out.