I work on deep learning methods to analyze electronic medical records. Institution I work for (high ranking university in the US) has some outdated GPUs I can use to crunch some numbers, but I cannot use really use them to experiment to learn new things or use them for my own projects. $50-100 credit would help me a lot to rent a GPU instance for many hours and learn a few new tricks. I could start with applying Convolutional Neural Nets to play with this: https://www.kaggle.com/c/grasp-and-lift-eeg-detection .