Here is a highly detailed, multicolor-ready, 1/10 scale model of a 5lb propane tank.

Due to the number of different colors on each layer, the multicolor prints will take a very long time and generate a substantial amount of waste material. To mitigate the waste, I recommend printing more than one and giving the extras to friends.

Supports are needed for this model but can be quite difficult to remove. Be especially careful with the support under the knob on top of the model as this area is quite fragile. Luckily, it is easy to glue this back together if it breaks. The fragility of this model is another reason to print multiple of them at once.