Here is a heat press machine that lets you customize your hats, shoes, and other small items. The Cricut Easy Press Mini has a ceramic heating plate for even heating and 3 settings. The device has a portable design and can glide over uneven surfaces easily.
The Cricut Easy Press Mini comes with an ergonomic handle, auto-off function, and precision tip, so you can get the job done safely every time. Costs under $50 at the time of this writing.