I made this origin for one of my friends on our SMP and its a really fun small gecko :P
Abilities
Tail Drop[Primary]: You drop your tail on purpose.
Gecko vision[Secondary]: Your uniquely shaped eyes are specially designed to detect anything in a close radius around you.
Regrowth: When you are on low health you drop your tail and gain regen, speed, and jump boost!
Climbing: You can climb any surface
Chilly: When in cold biomes you are forced to go into hibernation, you gain slowness II, and weakness III
Chameleon: You change the colour of your skin to Disguise into your biome
SmallBoi: you are only six pixels tall
Slender Body: You can reach blocks and entities further away.
Acrobatics: You take no fall damage
Vegetarian: You can't eat meat
Unwieldy: You can't use shields
Short arms: Due to your short arms you can't pull back a bow or crossbow
Less hearts: you have 2 fewer hearts
Like water: When underwater, you do not sink to the ground unless you want to.
Video: