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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Another fun tool is the reddit avatar explorer which allows you to view and download your current avatar on to other avatar backgrounds. So even though The Hands might be out of your budget, you can still take a look at what your avatar would look like on The Hands background and pretend you own it, while crying because you don't (that's what I do anyway).
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.