Social Experiment Art and Logo Design

I am carrying out a social experiment around the power of kindness. I hope to recruit 30+ people to help me by holding signs in my local market place that are saying "THANK YOU"... on one side and "THAT IS SO KIND OF YOU!!" on the other. I intend to measure people's happiness levels by asking them two simple questions: 1) On a scale of 1-10 how happy are you right now? 2) On a scale of 1-10 how likely are you to help someone in need right now? These questions will be asked to a control group - people who have not visited the market square yet and to people leaving the square. I hypothesize that the people who have been observing the signs will be more likely to be more happy and altruistic. I need a logo designed for the project that I am calling the kindness receipt like the example. In all png and jpeg pdf etc. with a color palette. I need art work designed for the posters. One saying "THANK YOU"... with the kindness receipt logo in the corner and one saying "THAT IS SO KIND OF YOU!!" again with the logo in the corner.

Project ID: 40422928