TensionBow
The TensionBow (JP: TP蝶タイ TP Bowtie) is an armor in Deltarune that can be obtained from Malius at the Top Bakery in Castle Town from Chapter 2 onward. It can be created by fusing a B.ShotBowtie and the TensionBit together. Due to the Color Cafe (the place where the B.ShotBowtie is obtained) being blocked by Rouxls Kaard's statue, it cannot be obtained in the Weird Route.
It grants +2 DF and 
TPGain, which in the case of the TensionBow grants 10% extra TP gain from grazing. It can be equipped to any party member.
Unlike most other equipment, party members do not comment upon equipped with the TensionBow, which is similar to the (unused) SkyMantle.