I have been putting 2 opposites together:

Ask More Say less
Courage Grows, Cowardice Costs
Explore Boldly, Timidity Traps
Fear Freezes, Love Warms
Create, Don't Destroy

I'm thinking of making a 2 sided Duck Coin
What do you think?

Start Now/Keep Going/You Matter/Try Anyway/Begin Again
Don't Quit/There is no Can't/You Can/Rise Up
Stand for Something/Push Forward/Trust Yourself
Take Action/Persist Daily/Effort Counts
Progress over Perfection/Small Steps/You're Enough
Keep Trying/Refine what you do/Rub a Magic Lamp

new primary
Love Wins/Love Loudly/Love First/Love Yourself
Be Brave/Courage Grows/Be Bold/Be Fearless
Fear Lies/Doubt Dims Light/Light needs dark
Balance opposites/Find the Middle/Two sides, one Truth
Extremes meet/Opposites Complete/Between Black and White
Stress Motivates/Tension Teaches

We need a MASSIVE list of primaries, like:

Be Curious
Question Everything
Seek Wonder
Think Deeply
Stay Curious
Wonder Why
Explore boldly
Think freely
Discover Daily
Create meaning
Choose Kindness
Embrace Mystery
Find Beauty
Stay Open
Fear less
Face Fear
Fear or Grow
Hate Hurts
Choose Love

Here are some past duck quotes:

All Lies are Betrayals
Duck and cover from Misinformation
Collect Moments Not Things
Find Wonder Everywhere
Every Small Thing Matters
Curiosity is your Compass
More fun to Give than Receive

My duck quote for the day.
(and I think we all should doe this)
(I write my quotes on the ducks that I leave)

All Lies are Betrayal