Place the cucumber pieces on a cutting board and cover with plastic wrap.
Use a rolling pin or other tool with a flat side to gently smash the cucumber pieces. Make sure all of them are at least a bit smashed so they can easily absorb the marinade.
Add the remaining ingredients together with the cucumbers in a bowl and marinate for at least 10 minutes.
Top with sesame seeds or everything bagel topping. I find this salad tastes better fresh but it can be stored in the refrigerator for a few days.