Your search for "ultra small led" revealed the following:

LED module with magnetic switch 3 set : Green : BitTradeOne Electronic Parts Non-scale ADMGLGR3

LED module with magnetic switch with leads, set of 3: white : BitTradeOne Electronic Parts Non-scale ADMGLWWHH3

1.6x0.8mm chip LED yellow 3 strands with connector : Sakatsuu Electronic components Non-scale 2517

LED module with magnetic switch 2 lights with lead wires: red 3 modes Lighting pattern : BitTradeOne Electronic Parts Non-scale MMGL-W2-RD

Coin cell battery holder CR1220 always on : KEIGOO Electronic parts Non-scale 99020 "Sales start campaign! Special price 660 yen (normally 990 yen)"

LED module with magnetic switch 2 lights with lead wires: Orange 3 modes Lighting pattern : BitTradeOne Electronic Components Non-scale MMGL-W2-OG

LED module with magnetic switch 3 sets : Red : BitTradeOne Electronic Parts Non-scale ADMGLRD3

LED module with magnetic switch 2 lights with lead wires: white 3 modes Lighting pattern : BitTradeOne Electronic Components Non-scale MMGL-W2-WH

LED module with magnetic switch : Purple : BitTradeOne Electronic Components Non-scale ADMGLPR

LED module with magnetic switch : Ice Blue : BitTradeOne Electronic Components Non-scale ADMGLIB

LED module with magnetic switch with leads, set of 3: yellow : BitTradeOne ELECTRONIC PARTS NON-SCALE ADMGLWYE3

LED module with magnetic switch with leads, set of 3: blue : BitTradeOne ELECTRONIC PARTS NON-SCALE ADMGLWBL3

LED module with magnetic switch 2 lights with lead wires: Green 3 modes Lighting pattern : BitTradeOne Electronic Parts Non-scale MMGL-W2-GR

LED module with magnetic switch with lead wire : Purple : BitTradeOne Electronic Parts Non-scale ADMGLWPR

LED module with magnetic switch : Yellow : BitTradeOne Electronic Parts Non-scale ADMGLYE

LED module with magnetic switch 3 set : Orange : BitTradeOne Electronic Parts Non-scale ADMGLOR3

Chochin C White Ramen, small dishes, etc.: Sakatsuo Kit HO(1:87) 1512

LED module with magnetic switch : Red : BitTradeOne Electronic Parts Non-scale ADMGLRD

LED module with magnetic switch with lead wire : White : BitTradeOne Electronic Parts Non-scale ADMGLWWH

Japanese lantern A red, skewer friend, oden etc.: Sakatsuo Kit HO(1:87) 1508