Clipboard Beam
de.ub0r.android.clipboardbeam
About Clipboard Beam
If you have two devices with NFC and Beam (latter is standard with Android 4.1),
you can share the contents of the device clipboard just by touching the devices
together.
If you don't have NFC you can make QR codes with
https://f-droid.org/packages/com.google.zxing.client.android which can be read by another Android gadget
with a camera.