Easy to hold sucking vibrator

Hi. My wife has a Satisfyer, the original no-frills version, and she loves it. She has a little trouble holding on to it and with the controls sometimes when the arthritis in her hands is flared up. Can someone recommend a toy with the same effectiveness but that might be more ergonomic and easier to hold?

She prefers toys with less complex patterns, but does like a good range of speed and intensity.