My student always got 100% for her Chinese spelling and as a motivation and encouragement, I bought a pencil case from DAISO to her as a gift.
Another way I motivate my students is I will stick some cartoon stickers in my student's workbooks if they score 10/10 for their worksheets (smiling faces or those with encouraging words such as "excellent", "keep it up", "neat work" etc) but if they make a mistake or an error in their worksheets, I will stick a sticker with this emoticon :( (haha, it is just for the fun of it because they say kids learn through play too).
Other than that, sometimes I will buy little souvenirs for my students whenever I go overseas.
How about you? Hayley, Angeline, Rose and those with kids, how do you motivate your kids in their learning path? Do share with me, I would love to hear from you, to share some great ideas.