Find an idea!
Think about some weird/fun device and sketch it out! It can be as simple as a small badge with leds or as complex as a devboard (or even crazier??)
Make a schematic!
Use KiCad to make a schematic of your design! Pick out nice smd parts and make sure to check the datasheets for the parts you use!
Wire it!
Use KiCad to make a PCB layout of your design! Make sure to add a fun silkscreen and make it cute :3c
Make it irl!
Get everything you need to make it real. Order your pcb/parts and get a hotplate to solder on!