Distribute non-cash rewards
Do you want to thank an employee for putting extra hard work into a certain project? You do not always have to rely on monetary incentives to show gratitude. Instead, you can reward them with public recognition or by giving them a gift voucher via email. If you feel generous, you can also go for universally-appealed gifts such as movie tickets.
Let your employees know that you have multiple ways to appreciate them. Reward them differently so every employee could have fun. 
Offer personal development opportunities for your employees
Yes, there might be many projects that everyone at the workplace will want to engage in. Unfortunately, it can’t happen as you are restricted by rules. If you often have a hard time choosing the right candidates to do a job, try recognizing their talents, interests, and experiences.
If a hardworking employee from your workplace needs to develop professional skills or want to explore a new side, consider sponsoring his education class. You can also send him to a relevant conference or seminar.
