X-Ray
Deals
Sell This
Business
LEGO 21366 Floating Sea Otters

LEGO 21366 Floating Sea Otters

set number 21366 · Ideas · released 2026 · retail $119.99

est. Likely retiring · Dec 2028estimate · medium confidence

LEGO 21366 Floating Sea Otters is not on an announced retirement list; it is likely retiring on our estimate, with an estimated window around Dec 2028 at medium confidence. Not enough verified complete-set listings to calculate a dependable current estimate. Nothing here is an announced retirement — it is a signal to keep watching.

Complete-set valuation

Not enough verified complete-set listings to calculate a dependable current estimate. We only price complete sets, so parts, instruction manuals, minifigures and accessory listings never count toward these figures.

Alert me if a complete 21366 lists under $119.99

We watch verified complete-set listings for LEGO 21366 and email you when one hits your price. No account needed — one confirmation click and you're set.

$

We check daily and email you once — unsubscribe in one click.

Compared with Ideas

Retired Ideas sets currently ask a median of +35.6% vs original retail (based on 11 eligible sets).

This is how other Ideas sets that have already retired are priced today. It is not a prediction for set 21366. Based on current asking prices for verified complete sets on active listings, not completed sales. Past asking-price movement is not a prediction of future value.

Ideas retired-set price data →

Browse current 21366 listings on eBay →

This opens an eBay keyword search for “LEGO 21366”. Results are unfiltered live listings — they are not verified complete sets and carry no price estimate from us. Affiliate link disclosure.

Own this set? Photo Search it to price your copy →Hunting deals like this? Deal Finder →
Retiring soon, listed under retail →Retired sets still under retail →

Figures are typical asking prices from active listing data, not completed sales.

Calculated market estimate over time

2026-08-03 – 2026-10-05 · $115.00 latest

Checked 2026-10-04 · lifecycle data from Brickset. Based on Brickset ownership data + live eBay supply — LEGO does not publish production figures.

Related Ideas sets

See all LEGO sets leaving production

Alert meBrowse on eBay