Here's one for you. http://jfxr.frozenfractal.com/#%7B%22_version%22%3A1%2C%22_name%22%3A%22Powerup%2016%22%2C%22_locked%22%3A%5B%5D%2C%22sampleRate%22%3A4

Here's one for you. http://jfxr.frozenfractal.com/#%7B%22_version%22%3A1%2C%22_name%22%3A%22Powerup%2016%22%2C%22_locked%22%3A%5B%5D%2C%22sampleRate%22%3A44100%2C%22attack%22%3A0%2C%22sustain%22%3A0.29%2C%22sustainPunch%22%3A0%2C%22decay%22%3A1.58%2C%22tremoloDepth%22%3A0%2C%22tremoloFrequency%22%3A1%2C%22frequency%22%3A700%2C%22frequencySweep%22%3A0%2C%22frequencyDeltaSweep%22%3A0%2C%22repeatFrequency%22%3A0%2C%22frequencyJump1Onset%22%3A0%2C%22frequencyJump1Amount%22%3A0%2C%22frequencyJump2Onset%22%3A0%2C%22frequencyJump2Amount%22%3A0%2C%22harmonics%22%3A5%2C%22harmonicsFalloff%22%3A0.06%2C%22waveform%22%3A%22sine%22%2C%22interpolateNoise%22%3Atrue%2C%22vibratoDepth%22%3A6%2C%22vibratoFrequency%22%3A1%2C%22squareDuty%22%3A100%2C%22squareDutySweep%22%3A0%2C%22flangerOffset%22%3A33%2C%22flangerOffsetSweep%22%3A-2%2C%22bitCrush%22%3A16%2C%22bitCrushSweep%22%3A0%2C%22lowPassCutoff%22%3A10100%2C%22lowPassCutoffSweep%22%3A0%2C%22highPassCutoff%22%3A0%2C%22highPassCutoffSweep%22%3A0%2C%22compression%22%3A1%2C%22normalization%22%3Atrue%2C%22amplification%22%3A100%7D Fiddle with the "frequency" slider to make it more or less high-pitched.