In the Royal Air Force it's called "Bodge Tape", for obvious reasons. Ride safe.

Re gaffer tape, the old one minute mechanics course says:

"If it moves and it's not supposed to, use gaffer tape.
If it doesn't move and it is supposed to, use WD40"

Not sure quite how much the second bit applies in a first aid scenario!

Searching the internet for "tissue adhesive" gives lots of results.
It looks that that is the technical term for medical grade glue.
Most seems to be for veterinary use, though. I'm no doctor, but if it isn't harmful to the dog, one would assume it would be OK for humans in an emergency...

Some searching came up with this information:
The only currently FDA (US Food and Drug Administration) approved adhesives suitable for use as suture alternatives are veterinary products; n-butyl- cyanoacrylate tissue adhesives Vetbond (3M) and Nexaband liquid and octyl-based Nexaband S/C (intended for topical skin closure when deep sutures have been placed). Histoacryl Blue (butyl based) (Davis & Geck) and Tissu-Glu (isobutyl based) (Medi-West Pharmaceuticals) are sold in Canada for human use.

I've used tissue adhesive like Bestpet Pharmacy - Vetbond Tissue Adhesive 3M
On my dog (he's a working gundog so used to get some pretty serious cuts occasionally)

I'm pretty sure I didn't pay that much for it.

You need to be damm sure any wound is very clean before you close it up though otherwise you are setting up for a nasty infection. It was easy with the dog because they have a super high pain threashold. Scraping out with a gauze and washing with plent of clean water / saline with good light so you can see it's clean before drying and gluing closed.

Some place you might go
 

If your traveling out side of europe , usa, canada think about syringes . India the rate of reuse is 60% plus, china I ve read it s as high as 75%. By use I mean also clean and repackage. Some places south america you the doctors make you to buy them. it's better to be safe then dying of hep b,c or HVI from something you had no control over.

If you did your cpr training a long time ago then the rate of breaths to compressions has changed since the old days, the advice now is two breaths and 30 compressions and repeat.