Difference between Doohickey and Gubbins

DOOHICKEY vs GUBBINS: NOUN

A thing (used in a vague way to refer to something whose name one cannot recall)
Any object, usually a tool or other device, whose name is forgotten, or not known.
Something, especially a small device or part, whose name is unknown or forgotten.
Something whose name is either forgotten or not known

Thingy, Gismo, Thingumajig, Thingmabob, Thingmajig, Thingumabob, Dojigger, Dohickey, Thingummy, Gimmick, Gubbins, Gizmo, Thingamabob, Thingamajig, Doodad

Gadgetry, Faff, Thingummy, Thingumajig, Thingumabob, Thingmajig, Thingmabob, Dojigger, Dohickey, Gimmick, Thingamajig, Gizmo, Doodad, Thingamabob, Doohickey

Recharger, Dongle, Adjustable spanner, Kludge, Device, Faff, Keychain, Dingus, Gewgaw, Gadget, Thingy, Gismo, Gimmick, Gizmo, Doodad

Roms, Flashgun, Gogglebox, Frippery, Kludge, Thingy, Gismo, Clicky, Technobabble, Gadgetry, Faff, Gimmick, Gizmo, Doodad, Doohickey

Something catches his eyes, and he looks at his feet: the red devil doohickey is sitting on the bars of the cell.
DooHCLUB-06 Harvest (from Early Bird DooHickey vol 6) The product is already in the wishlist.
Doohickey train and there is now much furore over whether the Studebaker unit is any good.
Mexican food doohickey now, Taco Bell locations will let you pick it up Saturday afternoon, two entire days early.
PERRY: So I wrote to him in prison and he sent me this devil doohickey.
Shockwave uses a doohickey to zap his spark into the Allspark and corrupt it.
Anonymous Bulletin: In brief: What about the doohickey?

Cornwall responded though, beating the outside edge of Gubbins' bat, and then trapped the same man lbw for 4, to leave the Lions 49-2.
Nick Gubbins of West Unity, Ohio, used the time as an opportunity to polish the interior chrome.
MARIANA FRANCISCA CARMELA GUBBINS COX in Joint Tenancy with Rights of Survivorship Mr.
Joseph Morse, Phil Gubbins, Ann Jones, Pete Kremen, Gary Snyder.
Why do you need all this cursor gubbins?
AUSA John Gubbins to the Department of Justice.
In a separate review by Gubbins et al.
Zeena glottis alloy sweetheartdom gubbins calorifier hypercycle dir.