Vertical Board Game "Out on a Limb"? Obscure—Need Details to Identify

No significant record of a vertical board game called "Out on a Limb." Possibilities:

• Homemade / Family Game: Many unique games never published.
• Name Variation: Out on a Limb is an idiom; could be Limb from Limb, Out on a Ledge, etc.
• Prototype / Kickstarter: Unfunded or small-run.
• Misremembered: Don't Break the Ice (vertical-ish), Jenga (tower), KerPlunk (vertical tube).

To track it down, recall:

• Mechanics: Stacking? Balancing? Climbing? Cards? Dice?
• Components: Tower? Tree? Pegs? Marbles?
• Era: 70s, 80s, 90s, 2000s?
• Publisher/Box art details?

Post on BoardGameGeek "Identify This Game" forum with all details—community excels at this!