Thank you! I guess the word “bulbs” was throwing off my search results.

Here is a store with a bunch:
https://www.christmasbykrebs.com/

I assume the outdoor ornaments are plastic. Secure tightly to withstand a windy day.

You are looking for outdoor ornaments.

https://www.michaels.com/product/assorted-975-jumbo-shatterproof-ball-ornament-by-ashland-1pc-10753201?cm_mmc=PLASearch-_-google-_-MICH_Shopping_US_N_Seasonal+Christmas_N_PMAX_BOPIS_N-_-&Kenshoo_ida=&kpid=go_cmp-21825448222_adg-_ad-__dev-c_ext-_prd-10753201&gad_source=1&gclid=CjwKCAiA34S7BhAtEiwACZzv4SuU2ymh0KoHhMf17_UwsTMyD2zTGDi5iUgThJWGUczdggdhhWYGBxoCrMoQAvD_BwE

Thanks for your reply! I'm not looking for anything that lights up, just larger-than-usual bulbs that I see hanging from some peoples' outdoor trees. Maybe I should take a picture. These are the weird flat ones I am trying to avoid, but something that would look like this except be actual 3-dimensional bulbs:

https://www.wayfair.com/outdoor/pdp/the-holiday-aisle-outdoor-hanging-christmas-ornaments-set-of-14-w006675625.html

I'm not clear what you mean... are you referring to bistro lights that some people hang in their trees year-round? Like this... https://www.voltlighting.com/shop/line-voltage/bistro-lights

Or spheres/balls that people put up specifically for Xmas. Like this... https://www.amazon.com/JNOEC-Outdoor-Lights-Hanging-Garden/dp/B0CC4L4SNB/ref=sr_1_18?crid=19NUGFUHLNPNT&dib=eyJ2IjoiMSJ9.uiRQNCf7lpeFbz7Lt4tpFDNcISXGAoSLMZKf2JXUpuYesC4Sth7aFptX9DXkF2cUawqALk0-0Qhc6l4Xnzqby-npl8W9OIv8V4oYAhGHl1M7ifKUHJ1pWCgIiPqxB37Pw1QVnsGiGsdoQJsga6Z09FxP6jJzgn6JN4O44oygYngAt40TTz1YRyjh96Ooaklo3cJU8LICVEHnN0BiThnnBUqK_NP6QGgtA3-7YblVJXgM7kjegcr5OnDz7qguhmUGSHjETYPx3Avm0MXciys_1Vo2_SXhlL3sVlWQeN-pwzS6K4nyZAQNv5yH3FNwsDjDOR2pUfDhvNONEhRUoqszruf1_W_6xANzpTejfWD5G60XxmRKd38oIYrP71ZhLkqRmozaIJTWgsaOFPaP89a2vvehpIDiyxBCXrTuFEcLWtm4kujcpGRh9k2OMgV8X5Ef.qD2o0P4SONboz_RP87q73MWqP0d1q5ENID4GGSosWgo&dib_tag=se&keywords=christmas+sphere+lights+outdoor&qid=1734446367&sprefix=christams+sphere%2Caps%2C94&sr=8-18

I sometimes see Christmas bulbs hanging on neighbors' trees outdoors, and it looks nice. But when I search online ("outdoor hanging Christmas bulbs," etc) all I find are various lights, and things that look like bulbs but are actually just flat plastic, not 3D. Is it possible the decorations I'm seeing are actually flat but they look like real bulbs? Am I searching wrong? Are people using indoor bulbs on outdoor trees? Is it a bad idea to do that (I can imagine them getting blown around in a high wind if they don't attach securely?)