Stickers between positive and negative
I think the stickers are great and I love, love, love the idea about making and posting your own (which some people have mentioned here), but one issue that keeps popping up for me is that the installed stickers are either very positive or very negative.
I want more stickers that say, "Good try," "Try harder next time," "Keep up the good work," "It's OK," or, "You can do better."
Something like that.
You can edit the stickers with speaker bubbles to say whatever you want them to say.