The large knob on the end of Brendon McCullum's bat handle is plain to see as he walks off after blazing a rapid 61 for the Brisbane Heat in their latest Big Bash League win.

Master blaster Brendon McCullum has continued his innovative thinking, producing a baseball bat styled handle for his Twenty20 cricket bat.

McCullum, one of the hottest properties on the lucrative T20 scene, has shaped a knob on the end of the handle to stop his hands from slipping off as he plunders bowling attacks.

And the former Black Caps skipper did just that with a 101-run opening stand for the Brisbane Heat in their nine-wicket pummelling of the Melbourne Stars in the latest round of Australia's Big Bash League.

GETTY IMAGES Brendon McCullum takes a baseball approach to this shot during his quick-fire half century for the Brisbane Heat.

McCullum needed just 27 balls to bring up his 50 with a six. He departed three balls later, caught at long off for 61.

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He hit seven fours and three sixes with a strike rate of 203.33.

McCullum was interviewed on the sidelines fresh from the batting crease and it didn't take long for questions to be asked about his unusual bat.

McCullum revealed it was designed for power hitting and he had made it by wrapping pieces of old batting grips around the end of the handle and rolling a fresh grip over them.

"Otherwise my hand slips off when I try to slog it," McCullum said.

"It's almost like a baseball grip."

McCullum and his "Bash Brother" Chris Lynn recorded their third century opening stand with Lynn finishing unbeaten on 63 from 46 balls.

That was good enough to earn Lynn a place in the Australian ODI team announced on Wednesday, a development that delighted McCullum.

​The win, Brisbane's third from five games, lifted them back into the top four.

McCullum has now scored 126 runs in five innings at an average of 25.20 and a strike rate of 151.80, clubbing 14 fours and five sixes.

McCullum's personalised bat carries the logo "never fear the air" as in hitting the ball over the top of the field.

He he chirped on Twitter that "there are no fielders up there".