Preliminary identification

Koeber's Interiors Promotional Reusable Red Party Cup

Photo reference

3 uploaded photos

Overview

A modern, reusable double-walled plastic tumbler designed to mimic the iconic silhouette of the classic disposable Solo cup. This piece features a white interior lining, a bright red exterior, and a custom white screen-printed logo for 'Koeber's Interiors' on the side.

Story

Introduced in the 1970s, the red Solo cup became an instant symbol of American youth culture and backyard gatherings. This reusable version transforms that fleeting, disposable party icon into a lasting keepsake, customized here as a promotional giveaway for an Oregon-based interior design firm.

Maker / Origin

While the original disposable cup was designed by Robert Hulseman for the Solo Cup Company, this reusable version is a modern promotional product manufactured in China. It was customized for Koeber's Interiors, a family-owned flooring and home design business operating in the Pacific Northwest.

Condition & Value

The cup appears to be in excellent, lightly used condition with no visible staining, cracking, or fading to the white screen-printed logo. The original manufacturer stickers are still intact on the bottom, suggesting minimal washing. This is a contemporary promotional item with nominal financial value.

Full Research

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Sold comps, value drivers, and venue guidance pulled from recent auction results.

Build on this identification

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Market Analysis

Comparable demand stays strongest where maker, originality, and venue confidence line up. Broader examples still trade, but the range tightens quickly when provenance, condition, or selling lane fit is missing.

Value Drivers

▲ Strong maker attribution with credible period details
▲ Better-than-average condition for the category
▲ Broader demand rises when presentation and finish feel intact

Concerns

▼ Decorative-only demand limits the ceiling
▼ Surface wear or missing provenance can compress the range fast
▼ Regional sale lanes often underperform specialist venues

Best Venue

Specialty auction or a focused dealer with buyers already in this lane.

Comparable Sales

5 comps

Regional auction· Jun 2024

$1,280

Signed example with light edge wear and original frame.

Dealer archive· Mar 2024

$1,450

Comparable format with stronger provenance and cleaner surface.

Marketplace sale· Jan 2024

$980

Smaller related piece with visible craquelure and trimmed margins.

Estate platform· Oct 2023

$1,150

Period match with softer condition and weaker subject matter.

Auction result· Aug 2023

$1,375

Close market lane comp with similar material and presentation.