If you don't want to use Paint or Photoshop, there are tons of templates you can find on Google images! If using Photoshop, ... is a great place to find classic characters. :D
by Macrame School
by Beading4perfectionis
by The 8-bit Cafe
by Ksripriya Kanigolla
by Sheruknittingcom
by Easy Origami Crafts
by Bügelperlenzeit Perler Beads