Thermal (heat) transfer vinyl comes in single colors, as well as specialty options, in full-color pattern options, and in a printable version that must be used with solvent ink & a solvent printer. It is best used for simple designs with minimal colors since each individual color or pattern used in the design must be cut, weeded, and heat pressed. Certain Thermal (heat) transfer vinyl can be layered to form multi-colored designs. The more layers involved, the harder it is to match up each to achieve the end result. Thermal (heat) transfer vinyl cannot be used for full-color pictures or anything with gradients. There are other applications for those options.
There are no minimums required with this type of service.
Below are some examples: